Log Message:
Update drraw to 2.2b1.

Changes since 2.2a5 [2008-05-03]:
- Added trend display pages.
- Dashboard style display for templates lacked links.
- Suppressed undefined variable warnings (courtesy of Martin Schuster).
- Replace "missing" graphs with "unknown" icon (courtesy of \ 
R.P. Aditya).
- Rcs module now(?) needs more to be untainted (reported by "Matt Perry).