* Bug fix to oracle for sunk-cost left/right transitions. These were asking questions about the label when they shouldnt be.
* Merge
* Add arc-eager transitions file, and tests for it.
* Merge setup.py
* Add arc_eager features
* Write compilation options from setup.py, and read them in as compile-time constants to control which transition-system to use.
* Bug fixes to Edit oracle
* Note serious bug in arc_hybrid Edit oracle, exposed by testing arc_eager oracle
* Update pystate class for disfluency tests
* Add Edit transition tests for arc eager
* Have the learner use separate hash tables for each feature template. This was supposed to improve efficiency and keep accuracy constant, but it harmed efficiency and improved accuracy. Investigating.
* Think I've addressed efficiency regression. Not sure whether accuracy improvement is significant, or just jitter.