Fix MD5 usage in Release build posts.

git-svn-id: svn://svn.icculus.org/fs2open/trunk@10725 387891d4-d844-0410-90c0-e4c51a9137d3
add Mac support for InnoExtract using chief1983's build

git-svn-id: svn://svn.icculus.org/fs2open/trunk@10726 387891d4-d844-0410-90c0-e4c51a9137d3