Pan Update

Here's a new snapshot with more tests and some bug fixes.

• added seperate tests for vserver, group, and article.
• removed the db test from build since it was superseeded by new tests.
• no longer assume group name from server is utf8 safe -- may break short names for non-ascii names.
• bug fixes related to tests.

Things on my TODO list:

• apply gmime patch.
• test threading.

Enjoy.

edit: It looks like the gmime patch is an old one that was already applied.