setUp and tearDown methods do not run (with context) for test groups

[sethfitz]

I have some test groups with setUp and tearDown methods defined for initialization and cleanup purposes. They run fine with vanilla nodeunit, but when I try to run them using rinuts, the wrapper methods aren't being called (and thus the tests are failing because they're not initialized properly).

When addressing this, we need to consider the possibility of nested test groups with wrapper methods at multiple levels.

[sethfitz]

With the recent changes, setUp and tearDown now run (yay!). However, the context (request body) is not provided to those methods, so I don't know where to make HTTP requests to to initialize things.