Plugins: Use record specific RTEtsConfigParams
The RTEhtmlarea plugin UserElements offers a possibility to create custom tags. The shown popup window with those user elements gets called with the GET parameter "RTEtsConfigParams" which has several information about the tablename, uid, pid, ... of the field the RTEhtmlarea field was put it.
This makes it impossible to render record and field specific user elements in the popup window showing the available tags.
This behaviour occurs also in other Plugins of RTEhtmlarea.
Using TYPO3 4.1.1 with the sysext RTEhtmlarea 1.5.2
(issue imported from #M5907)