Updating docs for mesa-1.6.1
Update documentation for mesa-1.6.1
Merge pull request #749 from arkadykanevsky/pull-req-release-mesa-1.6.1-master-3a3d09085f061aa13b7baf7964e6a4f496ef97c4

https://github.com/crowbar/barclamp-crowbar/pull/749

Merged by devtool for ArkadyKanevsky