Removes deprecated code
Moved the PathMaker trait functionality to Filesystem class (see October Rain)
Str::getRealClass -> class_basename
Fixes validation on Tabs and Cms pages
Fixes in the Richeditor styling. Implemented parsed content caching for content blocks.
Merge branch 'develop' of github.com:octobercms/october into develop
The CMS pages are now supported by the Static Pages menus