Merge pull request #21 from tribal-tec/master

Add DisplayCluster & TUIO finder
Generalize Spacemouse Finder
Merge branch 'master' of github.com:Eyescale/CMake
Tweak magellan Finder
Reuse known debs for CPack
Update Ubuntu releases
Fix Magellan OS X finder
Denoise and generalize API doc installation
Clean up doxygen install rules
Tweak dox index page
Fix doxygit script invocation
Quiten displaycluster finder
CommonCPack: add examples component
Simplify and fix setting of CPACK_PACKAGE_FILE_NAME
Fix VRPN finder
Better granularity for DEB dependencies
Fix GL feature detection for hwloc