* Only accept wd's that are more recent or have a higher hash than the current best
* Fix whitespace typo
* Relay current watchdog when lower priority ones are received
* Fix nHashWatchdogCurrent reset conditions
* expire previous current wd when a new one is found in UpdateCurrentWatchdog
* fail to process votes for expired or deleted object
* Add "enough data" stop conditions for gov sync
* fix:
- make sure condition is checked only once per tick
- let condition be fully used on resync (reset nTimeNoObjectsLeft)
* fix verification network behaviour:
- use up to 10 connections only
- save state (do not ask same nodes after restart)
- initiate on time based intervals (every 5 minutes), based not on new blocks (should keep connections alive longer)
* revert mWeAskedForVerification serialization
* send verify requests using MAX_POSE_CONNECTIONS as a step
* fix watchdogs:
- do not accept if CreationTime is out of bounds (using CreationTime, not local time now)
- do not sync expired
- fix disk serialization
* drop watchdogs early, avoid adding//removing
* clean mapWatchdogObjects when object is deleted via votes
* Few networking fixes:
- skip "masternode"/inbound connections for sync related processes
- do not sync gov data to other nodes until fully synced ourselves
- do not accept incoming connections until fully synced
* inbound connections could be harmful only if our node is a masternode
* same for CGovernanceManager::Sync
* Update for OpenSSL 1.1 API.
* Update qt/paymentrequestplus.cpp for OpenSSL 1.1 API.
* Fix missing # in if for qt/paymentrequestplus.cpp fix for OpenSSL 1.1 API change.
* Fix indentation in src/qt/paymentrequestplus.cpp.
