Bugfix SUP-353
											The per-editable configuration of stripped elements for the formatlesspaste plugin did not work.
This has been fixed now.
 Bugfix SUP-526
											The event handler for “selection changed” in the format plugin sometimes
cause a javascript error in internet explorer, which stopped processing of further event handlers.
This happened for instance, when choosing a link target in the repository browser. As a consequence
of the javascript error, the repository browser was not closed.
 Bugfix SUP-501
											When using the block plugin and the table plugin, sometimes when selecting something
in a table cell and pressing either “delete“ or “backspace”, the whole table was deleted.
This has been fixed now.
 Bugfix SUP-536
											If a dialog window appears when editing a right-to-left-page, the dialog window was shown incorrectly.
This has been fixed.
 Bugfix SUP-502
											When a selection is started inside of an editable, which is nested in a block
and finished outside of the editable, but still inside the block, the toolbar
was not shown. This has been fixed now.
 Bugfix SUP-517
											The toolbar sometimes showed empty tabs, which has been fixed.