Make the toolbar switch plugin ckeditor version independent.
This is done by switching the entire editor instead of just the toolbar.
This decreases the amount of effort needed to maintain this plug-in.
Also now all buttons work and no patches are needed.

The only side effect of this manner of swiching toolbars is that the
undo info is lost when switching the toolbar.

This may be fixed at a later time if possible by copying snapshots to
the switched editor.