Tied tuplet notes support

Recognition of first and last tuplet tied notes.

First tied note:
https://docs.google.com/file/d/0B5alKuFoSol2eGpBOUVBc01LQmM/edit?usp=sharing

Last tied note:
https://docs.google.com/file/d/0B5alKuFoSol2NnFXYl9rcXNYdzQ/edit?usp=sharing

Tied tuplets:
https://docs.google.com/file/d/0B5alKuFoSol2VXRsa1liTDU5VzQ/edit?usp=sharing