Pan Update

I finally found the time to post a new snaphot. The code has some important changes.

• bug fixes
• support for adding articles
• support for retreiveing extra headers
• import of old data appears to work
• retrieving list of vservers works
• retrieving list of groups in a vserver works (tested folders & subscribed)
• getting article counts from groups works

The current code is a big improvement since it actually works, at least the parts I've tested so far. I still need to test vservers, servers, articles, & threading as well as coding group & extra header addition.