Linking the new Cert Ui to WebDAV, making WebDAV code efficient, doing some clean up.

Actually, lots of clean-up (I basically saw my own code from 2 months ago and said "yuck!")

So I revamped almost all of it (lets see what happens 2 months from now :-) )

I have managed to meesup the javascript and some other minor (non-service interruptive)  stuff though.

Will work out how to fix them, in the next commit.