[Zope-PAS] Test fixes for pre-1.1 release

[Zachery Bir]

Hey, all.

I'm working on the remaining test glitches for use with Zope 2.8.0. 
Should be finished with the ScriptablePlugin before too long, and I 
hope to include some Zelenium functional tests to PAS. I'll work on 
getting all the appropriate plugins playing with optional prefixes 
(offering them up, when necessary).

I hope to have a new release by mid-next week at the latest.

Zac