* Updated readme
* Updated Sphinx docs
* Updated scripts
* Built latest docs
* Updated low level policies

Improve wait and highlevel

See merge request !7

And, changing # of hidden layers to 3 from 6.

add rollout timeout for MCTS

See merge request !6

* Reimplemented UCT MCTS
* Fixed softmax
* Merged multiple branches into this branch, all of which should now be in master
* Added reuse of tree functionality
* Added the ability to expand nodes based on q values rather than at random
* Refactored everything, deleted non necessary MCTS classes and files, and mcts.py can evaluate newer MCTS

Retraining wait maneuver

See merge request !4

- Also added ManualWait class.

More improve follow and keep lane

See merge request !3

Improve follow

See merge request !2

# Conflicts:
#   backends/kerasrl_learner.py
#   env/simple_intersection/simple_intersection_env.py
#   options/simple_intersection/maneuvers.py

Improve and bugfix low and high level training

See merge request !1