Refs #84 - Test that getPrototype returns a clone of the prototype.
Add helper method to MapperTestCase to make tests more readable.
Refs #84 - Test that inserterTrait performs insert on correct table.
Refs #84 - Test that inserterTrait inserts correct values.
Refs #84 - Test updater trait.
Refs #84 - Test finder trait.
Refs #84 - Test deleter trait.
Refs #84 - Test pivot deleter trait.
Refs #84 - Test pivot inserter trait.
Refs #84 - Test that inserterTrait sets created value.
Refs #84 - Allow Travis CI builds to pass even if HHVM build fails.

HHVM is throwing weird HHVM-specific errors.
Refs #84 - Test that inserterTrait sets created value in query.
Refs #84 - Test that updaterTrait sets updated value in query and on entity.
Refs #84 - Test SqlFactory.
Refs #84 - Test AccessTokenMapper.
Refs #84 - Test RefreshTokenMapper.
Refs #84 - Test SocialLoginMapper.
Refs #84 - Test UserMapper.

Improve assertions in SocialLoginMapper.
Refs #84 - Add helper method to perform a regex assertion on captured sql strings.
Refs #84 - Tets UserRolePivotMapper.