Merge pull request #435 from boegel/v1.1.x

only consider robot path if its an actual path (and not of type bool)
Merge pull request #436 from boegel/v1.1.x

various fixes for relative minor issues
Merge pull request #437 from boegel/v1.1.x

only load (and clean up) fake module for non-extensions
fix handling of extension sanity checks