Reduce error message to status to allow offline work
Merge branch 'master' of https://github.com/Eyescale/CMake
Separate code from specification for managed GitExternals
Update Readme with new .gitexternals usage and sha hash
Merge branch 'master' of https://github.com/eile/CMake
Fix cppcheck invocation for targets with no cpp files
Merge pull request #81 from eile/master

Reduce error message to status to allow offline work