* contrib: Update makeseeds.py
The `dnspython` package complained about `dns.resolver.Resolver.query()` being deprecated and suggested to use `dns.resolver.Resolver.resolve()` instead.
* contrib: Update dependency install instructions in seeds/README.md
* Modify makesseeds.py to work with "protx list valid 1" instead of "masternode list"
This allows better filtering for MN owners with multiple MNs. This commit
also removes some unsupported fields, e.g. "protocol", "lastseen", ...
* Update contrib/seeds/README.md with new instructions
* Change makeseeds.py to use masternode list as input instead of DNS seed dump
* Allow 4 nodes per ASN
Lift the limitation a bit so we get more entries
* Update nodes_main.txt and nodes_test.txt
Generated with makeseeds.py based on current masternode lists
* Fix comment about the source of the seed nodes and use masternodelist rpc
* Use fixed OpenDNS servers for ASN filtering
ac9cd95 contrib: Update location of seeds.txt (Wladimir J. van der Laan)
Tree-SHA512: c12a75787ba87f03707c21731da083b466762a7e0af9ca501107695ea1074025907cc24805c7c87f4a66daa7f4f13e574da16be1681e61deaf1acbd72176b3ff
a60677e Pre-0.14.0 hardcoded seeds update (Wladimir J. van der Laan)
bfa9393 contrib/seeds: Update PATTERN_AGENT (Wladimir J. van der Laan)
4dfac2c Update seeds tooling to Python 3 (Wladimir J. van der Laan)
- Moved all seed related scripts to contrib/seeds for consistency
- Updated `makeseeds.py` to handle IPv6 and onions, fix regular
expression for recent Bitcoin Core versions
- Fixed a bug in `generate-seeds.py` with regard to IPv6 parsing
