Now has priority grabbing. Wheeeeee!

Modified task.c for the new parser. Parses regular description
tasks, and also now priority.
Cleaned more stuff up. Parser almost done!
Finished up the parser! This should be rock solid.

Parser has a load of unit tests and supports everything that
Gina says it should. Woop woop!
Merge branch 'develop'

This stuff should be ready for production.