Make IsSuperMajority a standalone function
Move remaining CBlockIndex methods to chain.cpp
Auxpow implementation
Auxpow: release reference to CReserveKey
Auxpow: blockdb upgrade message, chain ID method replaced with const
Fix download link for gitian builds
Fixes to auxpow RPC
Fix to auxpow blockversion check
Merge pull request #5357

5ea3bc0 Move remaining CBlockIndex methods to chain.cpp (Pieter Wuille)
9dcd524 Make IsSuperMajority a standalone function (Pieter Wuille)
Tweaks to auxpow RPC, remove unused CReserveKey reference
Require reindex of pre-auxpow database, fix mis-requiring reindex of empty DB
Merge pull request #5471

164a45f Fix download link for gitian builds (BtcDrak)
Merge branch 'auxpow' merged mining for testnet
Merge remote-tracking branch 'bitcoin/master' into master