Removed unused devel status

Ignore-this: b37aa25bffbc147e336a881735395807

darcs-hash:20100506115746-58252-2c4e72d276078f2f2e753a46837851fb9b9a8b51
Split the installation instructions for MacOSX 10.5 and 10.6

Ignore-this: ebb1b5a40266349807207d58f8eb4723

darcs-hash:20100506121012-58252-deeda4cdef46f4f26675490bd2bc04a67f4ac5bf