Openssl build flags and compiler (gcc) used now
Merge pull request #81 from ClogenyTechnologies/openssl-gcc-aix

Openssl build flags and compiler (gcc) used now. Resolves EAGAIN error in ssl.
add OHAI_GIT_REV support
fix env var
Merge pull request #82 from opscode/lcg/ohai-git-rev

add OHAI_GIT_REV support