Added separator argument to getContainerClass (default separator is ' ' when setting the class attribute, but needs to be changed to '.' when printing inline CSS)
Merge branch 'private' of https://github.com/jordif/concrete5-5.7.0 into jordif-private
Merge branch 'jordif-private' into develop
Merge branch 'develop' of github.com:concrete5/concrete5-5.7.0 into develop