Tymoteusz Motylewski authored Jan 23, 2017 and Benni Mack committed Feb 07, 2017

This change unifies the ClickMenu functionality of the pagetree (ExtJS)
with the ClickMenu code given in other areas of the TYPO3 Backend.

The following changes are made:
* Unify the naming, it's "ContextMenu" not "ClickMenu" anymore
* Configuration for record types are unified, the clickmenu shows
  the same entries in the same order in any place.
* ExtJS-based ContextMenu is removed, all based on the new
  ContextMenu functionality.
* A new way for extending the items inside the ContextMenu
  is handled via ItemProviders, which can easily be extended.
* Configuring clickmenu items is not done based on PageTS (as it
  was handled with the ExtJS pagetree), however certain items can
  be disabled via PageTS.

Resolves: #78192
Releases: master
Change-Id: I380ac73ced10fdc7b1fdec7261e2d56da3d7d938
Reviewed-on: https://review.typo3.org/50124
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Benni Mack <benni@typo3.org>
Tested-by: Benni Mack <benni@typo3.org>