adjusted code consistency
added missing testing dependencies
render_model and render_model_block elements are not hidden in structure mode
Fix tests
Merge branch 'develop' of ssh://github.com/jrief/django-cms into develop
Merge pull request #2715 from yakky/feature/fix_2710_2

render_model and render_model_block elements are not hidden in structure mode
Added missing spaces in deprecation warning.
Merge pull request #2727 from timgraham/missing_spaces

Added missing spaces in deprecation warning.
Merge branch 'develop' of https://github.com/divio/django-cms into develop
Merge branch 'develop' into issue-2709
Rebased to 41dea105