Multiple vibration pattern implementation

SEE https://docs.google.com/document/d/18b32aveubsr2g5Co_VeW4q3s3IXxuddUU2BO5eC3jVA/edit for more info

Vibration patterns (section 5, example 2)

In the following example the pattern will cause the device to vibrate for 50 ms, be still for 100 ms, and then vibrate for 150 ms:

navigator.vibrate([50, 100, 150]);