message: Remove superfluous const, pass/define forkTime as int64_t
diff: @@ -65,8 +65,8 @@ public:
  const std::vector<unsigned char>& AlertKey() const { return vAlertPubKey; }
  int GetDefaultPort() const { return nDefaultPort; }
  - const bool IsProtocolV2(int nHeight) const { return nHeight > nFirstPosv2Block; }
  - const bool IsProtocolV3(int nHeight) const { return nHeight > nFirstPosv3Block; }
  + bool IsProtocolV2(int nHeight) const { return nHeight > nFirstPosv2Block; }
  + bool IsProtocolV3(int nHeight) const { return nHeight > nFirstPosv3Block; }
  const CBigNum& ProofOfWorkLimit() const { return bnProofOfWorkLimit; }
  const CBigNum& ProofOfStakeLimit(int nHeight) const { return IsProtocolV2(nHeight) ? bnProofOfStakeLimitV2 : bnProofOfStakeLimit; }
  @@ -96,9 +96,9 @@ public:
  const std::string GetDevContributionAddress() const { return devContributionAddress; }
  - const bool IsForkV2(unsigned int nTime) const { return nTime > nForkV2Time; }
  - const bool IsForkV3(unsigned int nTime) const { return nTime > nForkV3Time; }
  - int GetForkId(unsigned int nTime) const { return (nTime > nForkV2Time) ? 2 : 0; }
  + bool IsForkV2(int64_t nTime) const { return nTime > nForkV2Time; }
  + bool IsForkV3(int64_t nTime) const { return nTime > nForkV3Time; }
  + int GetForkId(int64_t nTime) const { return (nTime > nForkV2Time) ? 2 : 0; }
  const CBigNum BnProofOfWorkLimit() const { return bnProofOfWorkLimit; }
  const CBigNum BnProofOfStakeLimit() const { return bnProofOfStakeLimit; }
  @@ -128,8 +128,8 @@ protected:
  std::string devContributionAddress;
  - unsigned int nForkV2Time;
  - unsigned int nForkV3Time;
  + int64_t nForkV2Time;
  + int64_t nForkV3Time;
  };
  /**
  