Add internal transitions.

Relates to issue #10.
Add internal transitions.

Relates to issue #10.
Merge branch 'develop' of github.com:tarbrain/TBStateMachine into develop
Cleanup code.
Update feature list in README.md
Test travis conf.
Rename property states to stateMachines in classTBSMParallelState.
Add exception regarding event registration and deferral.
Add event deferral definition to TBSMState.

Relates to issue #11
Add additional test to internal transitions.

Tests behavior in parallel states.
Merge branch 'develop' into feature/event_deferral
Add tests for event deferral in nested state machine configurations.
Updated documentation.
Merge branch 'feature/event_deferral' into develop
Update README.md
Update README.md
Cleanup code.
Cleanup code.