Added fpumath.h
Added stdbool.h MSVC compatibility header.
Workaround C4127 MSVC level 4 warning.
Cleanup.
Fixed MSVC CRT error.
Merge branch 'master' of github.com:bkaradzic/bx
Enabled C4245: 'conversion' : conversion from 'type1' to 'type2', signed/unsigned mismatch