* improve and colorize warning/error/debug/info messages
* add include path warnings for /usr/include and /usr/local/include
other changes:
* bump version to 0.10
add support for multiple -arch flags with gcc (and clang + -oc-use-gcc-libs)
fix an unwind issue with -oc-use-gcc-libs + -mmacosx-version-min <= 10.5
update changelog