Fixed a few null references, made pebble publish gestures, and made it possible to subscribe to gestures we publish locally

Signed-off-by: Brandyn A. White <bwhite@dappervision.com>
Fixed up connectionmanager

Signed-off-by: Brandyn A. White <bwhite@dappervision.com>
Fixed local subscribe behavior and changed pebble channels

Signed-off-by: Brandyn A. White <bwhite@dappervision.com>
Add sensor off for accelerometer