v0.6.4.5

Change Alert PubKey so we can send alerts (currenlty do not have private key for the original pubkey used)
Various makefile fixes and cleanups. enable build_info for windows on sexcoin-qt and sexcoind.exe
Added -fpermissive to downgrade a compile error to warning for mismatched function argument type

pull these commits in and tag everything as v0.6.4.5