Fix for broken GLX extension in rhel6u6

RHEL/CentOS 6.6 bumped the version of xorg to 6u6, which broke
software GLX because Xvnc wasn't properly linked against libglapi.
Remove support for openSUSE 11.4

Project Evergreen stopped supporting 11.4 in October and it's not feasible to
back-port the patches for the Xorg 2014-12-09 CVEs, so as a result we can no
longer provide pre-built packages for this distribution.  The genric binaries
can be used instead.
Removing unwanted commits from pull request

Oops, didn't realize these changes wre on the branch from an
old pull request.
Merge pull request #94 from bphinz/buildfixes

Remove support for openSUSE 11.4