jsadmin: added latest changes from swen, fixes most (or all?) issues.
added kewyword id to all new files
Added default index.php to all folders to prevent directory spoofing
Fixed some bugs in the Javascript Admin module
fixed bug in Javascript Admin module
removed some wrong set keywords
Added keywords to files where they are missing
Added Javascript Admin module (developed by Stepan Riha, adapted for WB2.7 by Swen Uth)