[pony-build] Context Failures

[C. Titus Brown]

> Tell ya what -- here are some tests.  (branch 'tests_for_max')
> 
>   http://github.com/ctb/pony-build/blob/tests_for_max/client/test_client/test_context.py
> 
> Merge these in to your context failure code and get them all to work
> (feel free to change the tests, of course, but there's only one place
> where I think you'll need to).
> 
> And, not to threaten, but if you continue to use global variables I will break
> your knees or something.  Bad Max.

BTW, you can run the tests like so:

	nosetests test_client/test_context.py

Currently two will fail and one will succeed.

cheers,
--titus