svn merge -r99735:99739 svn+ssh://svn.lindenlab.com/svn/linden/branches/giab/giab-11 --> release
svn merge -r99735:99739 svn+ssh://svn.lindenlab.com/svn/linden/branches/giab/giab-11 --> release

Rebuilt x86_64 libOSMesa16, which wasn't really compiled with 16
bit/channel support, and was causing mapserver to crash on startup. Only
affects x86_64 builds.

gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm