check permissions for directory form
renamed param preview for previewMode to kwcPreview because the old name was to universally, the new is more clear
fixes for trl link intern

- correctly link to visible page in trl which is invisible in master
- add various tests
- add test for clear cache when changing visiblity of trl page (still incomplete)
refactor link intern events internal method
correctly clear cache for trl link intern when showing/hiding page
add another test, passes
clear cache for intern link when url changes
implement other recursive events as in master
clear cache for space trl component
fixed the depencies for VideoPlayer Component

needs ExtCore (for Kwf.onElementReady)
optimized name field for Kwf/User

name field is now Kwf_Model_Select_Expr
fix getting model, use correct component
add header and footer components to form, will be hidden on submit
Merge branch '3.2' into 3.3
show invisible components

isValidComponent should check that
if we are in a lightbox, the video should stop if lightbox closes
Use header and child in form

Probably due to performance reason child components were not in template variables when for was not sent
if preview mode is on, show media
Move logic into template-vars
added priority for Kwf_js/Component/FrontendPreview.js

because this code has to load the kwcPreview param before every element uses a link in previewMode