plunger moves to Google project hosting.

So far, plunger has existed in the WorldForge cvs tree out of convenience. However, as there are quite some people interested in plunger from outside the WorldForge project, I've decided to provide more infrastructure than what WorldForge has right now. This includes an issue tracker to allow people to more easily create bug reports and give feedback. After spending some hours to move the code from cvs to google's svn, plunger now lives at http://code.google.com/p/plunger/ Expect some changes while I sort out the infrastructure I want to have set up at the new site.