[BUILD] added git support to build system
[BUILD] small fix in git version extraction
[BUILD] added git version information to VersionInfo / OpenMSInfo
[BUILD,NOP] added missing mac osx version to OpenMSInfo
[NOP] add revision number (if available) also to the GUI About dialogs
Merge pull request #866 from aiche/feature/git-version-embedding

[FEATURE] git version embedding