Do not force test methods to start with 'test'

While using nodeunit-b I encountered some issues, and then I discovered that it does not wrap tests whose name doesn't start with *test*. This took me a bit to figure it out, because nodeunit was running my tests, but they were not receiving any `window` object.

Since nodeunit executes tests whose name does not start with *test*, why shouldn't nodeunit-b do the same?

This is just my humble opinion, maybe it's all wrong!
Thanks again for your consideration!