Merge pull request #146 from eile/master

Add warning for common user error
Merge pull request #147 from eile/master

Add changes file
Merge branch 'master' of https://github.com/Eyescale/CMake
Install symlinks relative, not absolute

This is necessary to fix artifact copy in Jenkins. Besides, the
symlinking on Unix for the different SO versions of libraries
is also based on relative symlinks.
Merge pull request #151 from tribal-tec/master

Install symlinks relative, not absolute
Speedup cppcheck execution
Merge pull request #152 from tribal-tec/master

Speedup cppcheck execution
Fix #148: "make test" does not run all cppcheck tests