Unify all the revision placeholders out to 6 digits for increased regex replacement reliablity.

git-svn-id: svn://svn.icculus.org/fs2open/trunk/fs2_open@10570 387891d4-d844-0410-90c0-e4c51a9137d3
Removes the DS_Store hidden files from the Xcode4 Frameworks archive.

git-svn-id: svn://svn.icculus.org/fs2open/trunk/fs2_open@10572 387891d4-d844-0410-90c0-e4c51a9137d3