seams to break tests... no clue why
added tests
removed unused class
Merge pull request #2376 from digi604/placeholder_plugin

WIP Placeholder plugin
Merge pull request #2387 from FinalAngel/feature/clipboard

Proper Cut & Paste
fixed tests
updated locales
locales updated
Merge pull request #2390 from FinalAngel/fixes

emergency fix for jstree
Fix show_editable_model templatetag reference in doc.
Fix #2389
Merge pull request #2393 from yakky/feature/fix_fe_docs

Fix show_editable_model templatetag reference in doc.
Remove duplicate paragraph
Merge pull request #2394 from yakky/feature/docs_cleanup

Remove duplicate paragraph
clear plugin on submit