* Add an option to use specific address as a source of funds in protx rpc commands
* fix typo "must"
* Always use payoutAddress (or operatorPayoutAddress) as a default if no fundAddress was specified
* make sure we actually selected some inputs
* fundAddress -> feeSourceAddress
* Align help text with new logic
* fix protx_update_service
* fix protx_revoke
* Add fRequireAllInputs to CCoinControl and use it in FundSpecialTx
This avoids adding all inputs even though they are not needed.
* Allow to specify empty operator payout address and simplify fee code in update_service
DIP3 tests were failing to call "protx update_service" as it did not accept
an empty "operatorPayoutAddress".
This also simplifies handling of the feeSourceAddr.
* Specify source for funds and fees in DIP3 tests
* Allow specifing max number of outpoints to be returned per address in SelectCoinsGroupedByAddresses
Fixes CreateDenominated failure for addresses with huge amount of inputs
* Apply suggested fixes
* drop most of custom PS logic from SelectCoins and inject it into regular flow (i.e. SelectCoinsMinConf)
* different priority for different denoms
* move CompareByPriority higher
* update comment
Co-Authored-By: UdjinM6 <udjinm6@gmail.com>
* Pass CCoinsView reference to special TX handling methods
* Allow referencing other TX outputs for ProRegTx collateral
* Remove "collateralAmount" from "protx register"
* Rename "protx register" to "protx fund_register"
* Remove UpdateSpork15Value from CDeterministicMNManager
Was not used/implemented anymore
* Lock masternode collaterals after chain/DIP3 is fully initialized
Otherwise detection of collaterals does not work.
* Implement new "protx register" RPC which uses existing collaterals
* Remove "masternode info" RPC
It is not consistent with other "masternode" RPCs anymore as it requires
the ProRegTx hash while all other RPCs work with the collateral.
* Load sporks from disk cache before initializing the chain
Otherwise spork15 is not loaded when we check it for the first time.
* Implement "protx info" RPC
* Use "protx info" instead of "masternode info" in DIP3 tests
* Test external collaterals for ProTx
* Handle review comments
* Don't pass CCoinView reference when it's not used
* Revert "Pass CCoinsView reference to special TX handling methods"
This reverts commit 28688724e112c8fe18e44aef055768dbbc068d7d.
* Use GetUTXOCoin instead of now removed coinsView
Also remove collateral height check as GetUTXOCoin only returns confirmed
coins.
* Add conflict handling for external collaterals to mempool
* Handle review comments (squashed Github suggestions)
Co-Authored-By: codablock <ablock84@gmail.com>
* fix CTxLockRequest::GetMinFee()
* Force regular IS txes to include MIN_FEE * n_inputs fee on creation regardless of auto-IS status
* set_autoix_spork_state should bump mocked time
* make sure IS fee matches the expected one
* turn off spork16 and test all types of txes again
* add locktransaction rpc call
* Remove special instantsend fee for simple transactions
* Function to check if trx is simple enough to be autolocked
* Automatic lock for all received from peers simple trxes
If we get a new transaction with CInv message and it is "simple" and
is accepted in mempool, we initiate its lock. We don't lock orphan trxes
that accepted in mempool after this trx because they are locked by other
peers.
* Automatically lock simple trxes in wallet
* protocol bump for InstantSend without special fee
* Add function to detect used mempool share
* Mempool threshold for auto IX locks
* Add SPORK_16_INSTANTSEND_AUTOLOCKS spork
* Make autolocks active only when spork SPORK_16_INSTANTSEND_AUTOLOCKS is active
* BIP9 autolocks activation
* revert increasing min peer protocol version for mn rank
* move IsTrxSimple check to CTxLockRequest class
* make MAX_INPUTS_FOR_AUTO_IX private member of CTxLockRequest class
* make AUTO_IX_MEMPOOL_THRESHOLD private member of CInstantSend class
* remove locktransaction RPC call
* tests for automatic IS locks
* fix mempool threshod calculation
* bump mocktime in activate_autoix_bip9
* set node times
* no need to spam the node with gettransaction rpc requests that often
* use `spork active` instead of leaking spork logic into tests
* codestyle fixes
* add test description in comments
* fix typo
* sync test nodes more often during BIP9 activation
* Use 4th bit in BIP9 activation
* Fix comments according codestyle guide
* Call AcceptLockRequest and Vote at the first node creating autoix lock
* fix mempool used memory calculation
* rallback not necessary change in CWallet::CreateTransaction
* test for stopping autolocks for full mempool
* Inject "simple autolockable" txes into txlockrequest logic
* Remove leftover RBF code from BTC
* remove rbf #include
* remove rbf in rpc-tests
* removes replace-by-fee.py
* remove help text related to rbf
* remove comment text relating to rbf
* remove "-mempoolreplacement" cli option
* Remove (effectively dead) RBF code which would never have been called anyway and some assosiated variables
* since `setConflicts` is always empty, this is dead code
* Since we don't have RBF, don't have to do this check. Also, since `setConflicts` is always empty this is dead code
* removes unneccesary if as it will always be true
* remove unused `set<uint256> setConflicts`
* Removes replacement of conflicting txs, as conflicting txs are never accepted
* removes RBF from `validForFeeEstimation`
* removes (probably) unnecessary lock
* remove replacing part of the AcceptToMemoryPool and AcceptToMemoryPoolWIthTime
* fixes err in ps.cpp, didn't remove arg
* RBF in net_processing.cpp
* remove arg in ps-server.cpp
* removes another arg in PS code
* removes rawtx.c AcceptToMemoryPool arg
* removes arg in txvalidationcache_tests.cpp
* remove extra args
* forgot an arg
* fix typo in 82898b0
* remove unused fEnableReplacement in validation.h
* remove the removal reason REPLACED in txmempool.h
* removed unused variable
* comment typo
* Lean towards "from high to low" branch but still mix via "from low to high" one someties
* Try to mix non-duplicate txids only
* Lean towards edges but still mix starting from the middle sometimes
If failed when started from the middle try mixing from the edges right away.
Note: liqudity providers always start from 0
* map -> set
* Refactor nRoundStart calculations
* adds rpc calls for `setprivatesendrounds` and `setprivatesendamount`
* tabs -> spaces
* @gladcow change request
* Whops tab -> spaces
* @Udjin changes, not the CAmount -> int
* int stuff
* Throw error when rounds / amount isn't within range
* remove instandsenddepth option
* remove CInstantSend::GetConfirmations
* Explicit IXlocks processing in the code using GetDepthInMainChain
* remove dummy confirmations for IX locks
* remove unused constant
* Track IS status in TransactionStatus
* Highlight IS in tx list
* Customize confirmation icons for IS txes
* Fix issues:
- bring back removed comment;
- simplify 2 complex condition to ose `IsTrusted()` function only;
- rename `IsLockedIX` function to 'IsLockedByInstantSend`;
* Revert condition with IsTrusted()
* code style fix
* remove dummy confirmations from instantsend.md
* fix instantsend.md
* .gitnore visual studio bs
* Improves the readability of the `GetOutpointPrivateSendRounds` function by not having the second argument be needed, as the second arg should only not be 0 when it is recursively calling itself
* Revert ".gitnore visual studio bs"
This reverts commit 129b5242ade6a97a71810f492b5b347be219b691.
* changed back comment and fixed allignment
* refactor based on Udjin's suggestions.
* refactor based on Udjin's suggestions.
* fix alignment
* Revert "fix alignment"
This reverts commit c2cc2ae531c191258cd043b2b45a316443e4b860.
* actually fix alignment
* actually fix alignment
* Fix typo in PS info dialog
Also adjust translations accordingly.
* Fix typo in PS low key warning
* Fix typo in sendrawtransaction help
* Fix sendtoaddress/sendmany help text
* Fix listreceivedby* help text
* Fix typo in listunspent help
* Fix spelling "recieves"->"receives"
Shame on me
* transactions->transaction
* receives->"incoming payments grouped"
* Merge #8068: Compact Blocks
48efec8 Fix some minor compact block issues that came up in review (Matt Corallo)
ccd06b9 Elaborate bucket size math (Pieter Wuille)
0d4cb48 Use vTxHashes to optimize InitData significantly (Matt Corallo)
8119026 Provide a flat list of txid/terators to txn in CTxMemPool (Matt Corallo)
678ee97 Add BIP 152 to implemented BIPs list (Matt Corallo)
56ba516 Add reconstruction debug logging (Matt Corallo)
2f34a2e Get our "best three" peers to announce blocks using cmpctblocks (Matt Corallo)
927f8ee Add ability to fetch CNode by NodeId (Matt Corallo)
d25cd3e Add receiver-side protocol implementation for CMPCTBLOCK stuff (Matt Corallo)
9c837d5 Add sender-side protocol implementation for CMPCTBLOCK stuff (Matt Corallo)
00c4078 Add protocol messages for short-ids blocks (Matt Corallo)
e3b2222 Add some blockencodings tests (Matt Corallo)
f4f8f14 Add TestMemPoolEntryHelper::FromTx version for CTransaction (Matt Corallo)
85ad31e Add partial-block block encodings API (Matt Corallo)
5249dac Add COMPACTSIZE wrapper similar to VARINT for serialization (Matt Corallo)
cbda71c Move context-required checks from CheckBlockHeader to Contextual... (Matt Corallo)
7c29ec9 If AcceptBlockHeader returns true, pindex will be set. (Matt Corallo)
96806c3 Stop trimming when mapTx is empty (Pieter Wuille)
* Merge #8408: Prevent fingerprinting, disk-DoS with compact blocks
1d06e49 Ignore CMPCTBLOCK messages for pruned blocks (Suhas Daftuar)
1de2a46 Ignore GETBLOCKTXN requests for unknown blocks (Suhas Daftuar)
* Merge #8418: Add tests for compact blocks
45c7ddd Add p2p test for BIP 152 (compact blocks) (Suhas Daftuar)
9a22a6c Add support for compactblocks to mininode (Suhas Daftuar)
a8689fd Tests: refactor compact size serialization in mininode (Suhas Daftuar)
9c8593d Implement SipHash in Python (Pieter Wuille)
56c87e9 Allow changing BIP9 parameters on regtest (Suhas Daftuar)
* Merge #8505: Trivial: Fix typos in various files
1aacfc2 various typos (leijurv)
* Merge #8449: [Trivial] Do not shadow local variable, cleanup
a159f25 Remove redundand (and shadowing) declaration (Pavel Janík)
cce3024 Do not shadow local variable, cleanup (Pavel Janík)
* Merge #8739: [qa] Fix broken sendcmpct test in p2p-compactblocks.py
157254a Fix broken sendcmpct test in p2p-compactblocks.py (Suhas Daftuar)
* Merge #8854: [qa] Fix race condition in p2p-compactblocks test
b5fd666 [qa] Fix race condition in p2p-compactblocks test (Suhas Daftuar)
* Merge #8393: Support for compact blocks together with segwit
27acfc1 [qa] Update p2p-compactblocks.py for compactblocks v2 (Suhas Daftuar)
422fac6 [qa] Add support for compactblocks v2 to mininode (Suhas Daftuar)
f5b9b8f [qa] Fix bug in mininode witness deserialization (Suhas Daftuar)
6aa28ab Use cmpctblock type 2 for segwit-enabled transfer (Pieter Wuille)
be7555f Fix overly-prescriptive p2p-segwit test for new fetch logic (Matt Corallo)
06128da Make GetFetchFlags always request witness objects from witness peers (Matt Corallo)
* Merge #8882: [qa] Fix race conditions in p2p-compactblocks.py and sendheaders.py
b55d941 [qa] Fix race condition in sendheaders.py (Suhas Daftuar)
6976db2 [qa] Another attempt to fix race condition in p2p-compactblocks.py (Suhas Daftuar)
* Merge #8904: [qa] Fix compact block shortids for a test case
4cdece4 [qa] Fix compact block shortids for a test case (Dagur Valberg Johannsson)
* Merge #8637: Compact Block Tweaks (rebase of #8235)
3ac6de0 Align constant names for maximum compact block / blocktxn depth (Pieter Wuille)
b2e93a3 Add cmpctblock to debug help list (instagibbs)
fe998e9 More agressively filter compact block requests (Matt Corallo)
02a337d Dont remove a "preferred" cmpctblock peer if they provide a block (Matt Corallo)
* Merge #8975: Chainparams: Trivial: In AppInit2(), s/Params()/chainparams/
6f2f639 Chainparams: Trivial: In AppInit2(), s/Params()/chainparams/ (Jorge Timón)
* Merge #8968: Don't hold cs_main when calling ProcessNewBlock from a cmpctblock
72ca7d9 Don't hold cs_main when calling ProcessNewBlock from a cmpctblock (Matt Corallo)
* Merge #8995: Add missing cs_main lock to ::GETBLOCKTXN processing
dfe7906 Add missing cs_main lock to ::GETBLOCKTXN processing (Matt Corallo)
* Merge #8515: A few mempool removal optimizations
0334430 Add some missing includes (Pieter Wuille)
4100499 Return shared_ptr<CTransaction> from mempool removes (Pieter Wuille)
51f2783 Make removed and conflicted arguments optional to remove (Pieter Wuille)
f48211b Bypass removeRecursive in removeForReorg (Pieter Wuille)
* Merge #9026: Fix handling of invalid compact blocks
d4833ff Bump the protocol version to distinguish new banning behavior. (Suhas Daftuar)
88c3549 Fix compact block handling to not ban if block is invalid (Suhas Daftuar)
c93beac [qa] Test that invalid compactblocks don't result in ban (Suhas Daftuar)
* Merge #9039: Various serialization simplifcations and optimizations
d59a518 Use fixed preallocation instead of costly GetSerializeSize (Pieter Wuille)
25a211a Add optimized CSizeComputer serializers (Pieter Wuille)
a2929a2 Make CSerAction's ForRead() constexpr (Pieter Wuille)
a603925 Avoid -Wshadow errors (Pieter Wuille)
5284721 Get rid of nType and nVersion (Pieter Wuille)
657e05a Make GetSerializeSize a wrapper on top of CSizeComputer (Pieter Wuille)
fad9b66 Make nType and nVersion private and sometimes const (Pieter Wuille)
c2c5d42 Make streams' read and write return void (Pieter Wuille)
50e8a9c Remove unused ReadVersion and WriteVersion (Pieter Wuille)
* Merge #9058: Fixes for p2p-compactblocks.py test timeouts on travis (#8842)
dac53b5 Modify getblocktxn handler not to drop requests for old blocks (Russell Yanofsky)
55bfddc [qa] Fix stale data bug in test_compactblocks_not_at_tip (Russell Yanofsky)
47e9659 [qa] Fix bug in compactblocks v2 merge (Russell Yanofsky)
* Merge #9160: [trivial] Fix hungarian variable name
ec34648 [trivial] Fix hungarian variable name (Russell Yanofsky)
* Merge #9159: [qa] Wait for specific block announcement in p2p-compactblocks
dfa44d1 [qa] Wait for specific block announcement in p2p-compactblocks (Russell Yanofsky)
* Merge #9125: Make CBlock a vector of shared_ptr of CTransactions
b4e4ba4 Introduce convenience type CTransactionRef (Pieter Wuille)
1662b43 Make CBlock::vtx a vector of shared_ptr<CTransaction> (Pieter Wuille)
da60506 Add deserializing constructors to CTransaction and CMutableTransaction (Pieter Wuille)
0e85204 Add serialization for unique_ptr and shared_ptr (Pieter Wuille)
* Merge #8872: Remove block-request logic from INV message processing
037159c Remove block-request logic from INV message processing (Matt Corallo)
3451203 [qa] Respond to getheaders and do not assume a getdata on inv (Matt Corallo)
d768f15 [qa] Make comptool push blocks instead of relying on inv-fetch (mrbandrews)
* Merge #9199: Always drop the least preferred HB peer when adding a new one.
ca8549d Always drop the least preferred HB peer when adding a new one. (Gregory Maxwell)
* Merge #9233: Fix some typos
15fa95d Fix some typos (fsb4000)
* Merge #9260: Mrs Peacock in The Library with The Candlestick (killed main.{h,cpp})
76faa3c Rename the remaining main.{h,cpp} to validation.{h,cpp} (Matt Corallo)
e736772 Move network-msg-processing code out of main to its own file (Matt Corallo)
87c35f5 Remove orphan state wipe from UnloadBlockIndex. (Matt Corallo)
* Merge #9014: Fix block-connection performance regression
dd0df81 Document ConnectBlock connectTrace postconditions (Matt Corallo)
2d6e561 Switch pblock in ProcessNewBlock to a shared_ptr (Matt Corallo)
2736c44 Make the optional pblock in ActivateBestChain a shared_ptr (Matt Corallo)
ae4db44 Create a shared_ptr for the block we're connecting in ActivateBCS (Matt Corallo)
fd9d890 Keep blocks as shared_ptrs, instead of copying txn in ConnectTip (Matt Corallo)
6fdd43b Add struct to track block-connect-time-generated info for callbacks (Matt Corallo)
* Merge #9240: Remove txConflicted
a874ab5 remove internal tracking of mempool conflicts for reporting to wallet (Alex Morcos)
bf663f8 remove external usage of mempool conflict tracking (Alex Morcos)
* Merge #9344: Do not run functions with necessary side-effects in assert()
da9cdd2 Do not run functions with necessary side-effects in assert() (Gregory Maxwell)
* Merge #9273: Remove unused CDiskBlockPos* argument from ProcessNewBlock
a13fa4c Remove unused CDiskBlockPos* argument from ProcessNewBlock (Matt Corallo)
* Merge #9352: Attempt reconstruction from all compact block announcements
813ede9 [qa] Update compactblocks test for multi-peer reconstruction (Suhas Daftuar)
7017298 Allow compactblock reconstruction when block is in flight (Suhas Daftuar)
* Merge #9252: Release cs_main before calling ProcessNewBlock, or processing headers (cmpctblock handling)
bd02bdd Release cs_main before processing cmpctblock as header (Suhas Daftuar)
680b0c0 Release cs_main before calling ProcessNewBlock (cmpctblock handling) (Suhas Daftuar)
* Merge #9283: A few more CTransactionRef optimizations
91335ba Remove unused MakeTransactionRef overloads (Pieter Wuille)
6713f0f Make FillBlock consume txn_available to avoid shared_ptr copies (Pieter Wuille)
62607d7 Convert COrphanTx to keep a CTransactionRef (Pieter Wuille)
c44e4c4 Make AcceptToMemoryPool take CTransactionRef (Pieter Wuille)
* Merge #9375: Relay compact block messages prior to full block connection
02ee4eb Make most_recent_compact_block a pointer to a const (Matt Corallo)
73666ad Add comment to describe callers to ActivateBestChain (Matt Corallo)
962f7f0 Call ActivateBestChain without cs_main/with most_recent_block (Matt Corallo)
0df777d Use a temp pindex to avoid a const_cast in ProcessNewBlockHeaders (Matt Corallo)
c1ae4fc Avoid holding cs_most_recent_block while calling ReadBlockFromDisk (Matt Corallo)
9eb67f5 Ensure we meet the BIP 152 old-relay-types response requirements (Matt Corallo)
5749a85 Cache most-recently-connected compact block (Matt Corallo)
9eaec08 Cache most-recently-announced block's shared_ptr (Matt Corallo)
c802092 Relay compact block messages prior to full block connection (Matt Corallo)
6987219 Add a CValidationInterface::NewPoWValidBlock callback (Matt Corallo)
180586f Call AcceptBlock with the block's shared_ptr instead of CBlock& (Matt Corallo)
8baaba6 [qa] Avoid race in preciousblock test. (Matt Corallo)
9a0b2f4 [qa] Make compact blocks test construction using fetch methods (Matt Corallo)
8017547 Make CBlockIndex*es in net_processing const (Matt Corallo)
* Merge #9486: Make peer=%d log prints consistent
e6111b2 Make peer id logging consistent ("peer=%d" instead of "peer %d") (Matt Corallo)
* Merge #9400: Set peers as HB peers upon full block validation
d4781ac Set peers as HB peers upon full block validation (Gregory Sanders)
* Merge #9499: Use recent-rejects, orphans, and recently-replaced txn for compact-block-reconstruction
c594580 Add braces around AddToCompactExtraTransactions (Matt Corallo)
1ccfe9b Clarify comment about mempool/extra conflicts (Matt Corallo)
fac4c78 Make PartiallyDownloadedBlock::InitData's second param const (Matt Corallo)
b55b416 Add extra_count lower bound to compact reconstruction debug print (Matt Corallo)
863edb4 Consider all (<100k memusage) txn for compact-block-extra-txn cache (Matt Corallo)
7f8c8ca Consider all orphan txn for compact-block-extra-txn cache (Matt Corallo)
93380c5 Use replaced transactions in compact block reconstruction (Matt Corallo)
1531652 Keep shared_ptrs to recently-replaced txn for compact blocks (Matt Corallo)
edded80 Make ATMP optionally return the CTransactionRefs it replaced (Matt Corallo)
c735540 Move ORPHAN constants from validation.h to net_processing.h (Matt Corallo)
* Merge #9587: Do not shadow local variable named `tx`.
44f2baa Do not shadow local variable named `tx`. (Pavel Janík)
* Merge #9510: [trivial] Fix typos in comments
cc16d99 [trivial] Fix typos in comments (practicalswift)
* Merge #9604: [Trivial] add comment about setting peer as HB peer.
dd5b011 [Trivial] add comment about setting peer as HB peer. (John Newbery)
* Fix using of AcceptToMemoryPool in PrivateSend code
* add `override`
* fSupportsDesiredCmpctVersion
* bring back tx ressurection in DisconnectTip
* Fix delayed headers
* Remove unused CConnman::FindNode overload
* Fix typos and comments
* Fix minor code differences
* Don't use rejection cache for corrupted transactions
Partly based on https://github.com/bitcoin/bitcoin/pull/8525
* Backport missed cs_main locking changes
Missed from 58a215ce8c
* Backport missed comments and mapBlockSource.emplace call
Missed from two commits:
88c35491ab7c98ce584e
* Add CheckPeerHeaders() helper and check in (nCount == 0) too
* Make sure gobject collateral was mined
`CGovernanceObject::IsCollateralValid()` would still fail for non-mined collateral later trying to check confirmations
* Fix powLimit for mainnet/testnet
That's a legacy thing, slightly rising it to match the actual bit-shifted value has no effect because real values are already lower.
Also clarify values for all networks in comments.
* Check for script addresses in CSuperblock::ParsePaymentSchedule()
Sentinel should already be downvoting such triggers if they would exist, no need to store/relay them.
* Do not process already known valid vote twice in CGovernanceObject::ProcessVote()
This should be handled by `CGovernanceManager::ProcessVote()` but imo it's better to have this at the `CGovernanceObject::ProcessVote()` level as well.
* Make sure CGovernanceObjectVoteFile::AddVote() never adds/updates already known votes
The way `CGovernanceObjectVoteFile::AddVote()` is used (i.e. wrapped in `CGovernanceObjectVoteFile::HasVote()` condition) it's already the case. Hoever nothing would guarantee consistency if it would be used elsewhere without such wrapper, so it's better to have similar check inside.
* Do not even try mnb recovery when -connect is set
`CConnman::ThreadOpenMasternodeConnections()` thread won't even start when `-connect` is set, so no need to ask for recovery, there is nothing that is going to be able to process such request.
* No need for SIGHASH_ANYONECANPAY in PS collateral signature
Collateral is just a normal tx created and signed by each participant individually, there is no need for special sig types.
* Release semMasternodeOutbound in CConnman::Interrupt()
Re-align Dash code with Bitcoin.
* Allow data outputs in PS collaterals
This should allow to
- reduce utxo spam caused by 1x collaterals a bit
- use otherwise non-usable small inputs (in the range of 1-2x) as PS collaterals, which should reduce utxo set even further
Requires protobump
* patch to avoid protobump requirement
* address review comments
* Avoid locking cs_main in CMasternode/Ping/Broadcast
Deligate this to CMasternodeMan and use AssertLockHeld instead
* Ensure consistent locking order (cs_main, cs_wallet, mempool.cs, cs_instantsend) in CInstantSend while avoiding potential deadlocks at the same time
* Add missing locks in wallet
* Add missing locks in governance
* Fix cs_vPendingMasternodes vs cs_main potential deadlock
SendVerifyRequest no longer opens connection directly, so no cs_main is needed here
* RPC: fix listunspent include_unsafe param usage
* RPC: Add two fields to indicate if some mempool entry is an InstantSend tx and if it was locked or not
* RPC: Add privatesend_balance to getwalletinfo rpc
* RPC: "BTC" -> CURRENCY_UNIT
* RPC: more EnsureWalletIsAvailable in Dash-specific code
* RPC: EnsureWalletIsUnlocked in `gobject prepare`
Also fixes missing cs_wallet lock
* RPC: disable `privatesend` rpc on masternodes completely
* RPC: refactor `spork` rpc
* RPC: Show correct port in HelpExampleRpc
* RPC: few trivial fixes
* fix
* Drop nBudgetProposalEstablishingTime
* Refactor: replace `== COutPoint()` with `.IsNull()`
* Refactor: add `operator bool()` to CMasternodePing
* Refactor: actually use `operator bool()` for CPendingDsaRequest
* Refactor: fixing code style in TrafficGraphData
* Fix some comments and whitespaces
* Drop CGovernanceVote::GetTypeHash()
* Drop legacy X11 code
No longer used... if it ever was used at all.
* Move `<boost/foreach.hpp>` out of coins.h
* Simplify CMasternodeBlockPayees::GetRequiredPaymentsString()
Also less of boost::lexical_cast
* Drop CTxDSIn::nSentTimes
* Fix few warnings
* fix warning (timer)
* fix nit
* Remove remains of workaround that was needed while backporting
* Add missing closing round bracket to help string
* Remove now unnecessary .encode() calls in wallet.py
Now that we only support python3, we can fix this TODO.
