Merge pull request #1 from eile/master

Cleanups
Merge pull request #2 from eile/master

Init core classes in default ctor; cleanups
Pin CMake/common to enable stable build
Merge pull request #5 from tribal-tec/master

Pin CMake/common to enable stable build
Merge branch 'master' of https://github.com/Eyescale/vmmlib

Conflicts:
	.gitexternals