Bonn Agile Meetup: New URLs

So, the rename is complete. Here are our new urls:

Mailing list: http://groups.google.com/group/bonnagile
Homepage: http://sites.google.com/site/bonnagile/
Twitter: http://twitter.com/bonnxp
This blog: http://bonnagile.blogspot.com/

All links around should also be updated.

Note that the Xing group is still called "Bonn XP Meetup" until some Xing admins find the time to rename it.