Step NPE if message encapsulation fails.
Initial support for preventing get requests
Merge branch 'zwave-initialisation' of https://github.com/cdjackson/openhab into zwave-initialisation

# By daniel
# Via Chris Jackson (1) and daniel (1)
* 'zwave-initialisation' of https://github.com/cdjackson/openhab:
  Instances for non mutliinstance devices now start at 1
Add masterController option