Bitcoin: faa88d0b5c7f6e317d0e35daef28d320801f1bb5 (doc: update labels in CONTRIBUTING.md).
Bitcoin: faa88d0b5c7f6e317d0e35daef28d320801f1bb5 (doc: update labels in CONTRIBUTING.md).

aurarad/auroracoin,aurarad/auroracoin,aurarad/auroracoin,aurarad/auroracoin,aurarad/auroracoin