Dbconfigadmin

@kalbermattenm : You'll probably kill me for this major revision in one chunk, but could you please review ?
thanks!!!
there is a lot of commented code in admin_functions.py because in a first step I did not yet implement the filtering there
I didn't not go carefully through the whole templating stuff... I imagine you know what you are doing...

But you should indent the whole thing... It's javascript... not HTML (I know... It wouldn't be as readable as it is right now...).

I leave up to you...