build: Bump RC to rc2
build: Bump RC to rc2

Tree-SHA512: c1bb2b3fb772704ab0266a30011869cb326608b731b1c7feaea107e1cbd0e67f7cf500ca4be36c705d8a3e6d7fcf324c52c062164d6ba315fbf0b99eed362b76

GroestlCoin/GroestlCoin,peercoin/peercoin,qtumproject/qtum,ahmedbodi/vertcoin,qtumproject/qtum,ahmedbodi/vertcoin,GroestlCoin/GroestlCoin,vertcoin/vertcoin,qtumproject/qtum,peercoin/peercoin,DigitalPandacoin/pandacoin,ahmedbodi/vertcoin,GroestlCoin/bitcoin,monacoinproject/monacoin,ahmedbodi/vertcoin,GroestlCoin/bitcoin,peercoin/peercoin,qtumproject/qtum,GroestlCoin/GroestlCoin,DigitalPandacoin/pandacoin,vertcoin/vertcoin,vertcoin/vertcoin,qtumproject/qtum,peercoin/peercoin,monacoinproject/monacoin,monacoinproject/monacoin,GroestlCoin/GroestlCoin,ahmedbodi/vertcoin,qtumproject/qtum,vertcoin/vertcoin,GroestlCoin/bitcoin,GroestlCoin/bitcoin,ahmedbodi/vertcoin,monacoinproject/monacoin,DigitalPandacoin/pandacoin,GroestlCoin/bitcoin,DigitalPandacoin/pandacoin,GroestlCoin/GroestlCoin,peercoin/peercoin,vertcoin/vertcoin,vertcoin/vertcoin,GroestlCoin/bitcoin,peercoin/peercoin,DigitalPandacoin/pandacoin,DigitalPandacoin/pandacoin,qtumproject/qtum,monacoinproject/monacoin,monacoinproject/monacoin,GroestlCoin/GroestlCoin