Added py.test stuff.

This allows us to tests parsers with a file containing pairs of 2 lines, where the first line is the input, and the second line is the output. The output line is literal_eval'd for easy testing against dictionaries (since those are unsorted).
Made `rsplit` not use a keyword argument, this is not supported in python 2.
Made the anime tokenizer split encapsulation content on spaces.

Also added a video resolution, this should be changed to a regex (noted in TODO).