Refactoring pluto-container-driver-api

[Eric Dalquist <er...@doit.wisc.edu>]

We've been running into some problems with out the default 
PortletServlet initializes and destroys portlets. There are 
thread-saftey issues with the timer approach in the default 
implementation as well as the iniability of portlet container impls to 
effect how that initialization is done. The current design also 
precludes the portlet container from being reloaded. I'd like to create 
a branch off of trunk to commit the design changes I'm proposing for review.

If there are no objections I'll get the branch made and the changes I 
have so far put committed for review.

-Eric