Bump version for experiment strategy as_json change
Merge pull request #12 from airbnb/bump_version_experiment_strategy

Bump version for experiment strategy as_json change
Allow fetching history across features

The history does not include the full strategy information; only the timestamps
when changes occurred.
Merge pull request #13 from airbnb/all-history

Allow fetching history across features
Adds Trebuchet.reset_current!, consolidate controller trebuchets
use or equals for updating @current, bump version