message: extra hardened checkpoints added to kernel.cpp
  Extra hardened checkpoints added to kernel.cpp also.
diff: @@ -42,6 +42,7 @@ static std::map<int, unsigned int> mapStakeModifierCheckpoints =
  (219999, 0x91b7444du )
  (336000, 0x6c3c8048u )
  (371850, 0x9b850bdfu )
  + (407813, 0x46fe50b5u )
  ;
  static std::map<int, unsigned int> mapStakeModifierTestnetCheckpoints =
  @@ -54,6 +55,7 @@ static std::map<int, unsigned int> mapStakeModifierTestnetCheckpoints =
  (336000, 0x8330dc09u )
  (372751, 0x123b7387u )
  (373484, 0x4e97d40bu )
  + (380548, 0xbc4d34c1u )
  ;
  // Whether the given coinstake is subject to new v0.3 protocol
  