Merge pull request #94 from tribal-tec/master

Fix missing braces
Add rudimentary OpenMesh finder
Allow additional common_application parameters, e.g,, MACOSX_BUNDLE
Revert GitExternal to be standalone
Add author/copyright
Merge pull request #95 from eile/master

Changes needed for OpenMesh/3D geometry course
Deprecate useless update_file
Merge pull request #96 from eile/master

Deprecate useless update_file
CommonCode fixes
Merge branch 'master' of https://github.com/Eyescale/CMake
Fix typos
Update README.md
Enable transition to .gitexternals for doc repos
Merge pull request #97 from eile/master

Fixes