Added UA-tracking
Correct tracking codes per tracking type
Updated changelog
remove unused field
Remove all entities instead of just the special chars before truncating
a string. Fixes #386.

When we need to truncate a string we should remove all entities. For
example &nbsp; should be removed also, otherwise the & will be encoded as
&amp; and therefore it will be shown on the page.
Update jquery.frontend.js

This fixes the jquery frontend javascript file in Internet Explorer 7
Drop IE7 emulate in backend

Not resetting the CKEditor in the pages module makes it possible
to stop emulating IE7.
Bugfix: copying pages wasn't working due to the csrf-check.

To resolve this we extend from BackendBaseActionIndex instead of
BackendBaseActionDelete where the csrf-check is performed automatically