Bugfixes:

- fixed a bug with CMSms MLE

Changes:
- removed filepicker and block_types file/image (use GBFilePicker instead)

- removed block_type "note"

- added params block_group, collapse

- added preferences to toggle blocks/messages/block_groups per page or per template

- added preference to disable the AdvancedContent options tab

- feu access and expiry date should work with default {content} plugin now. (uses eventmanager now)