"id" is now stored in "pebble" object.
Merge remote-tracking branch 'pebble/master'

Conflicts:
	pebble.py
Adding work-around for empty app banks and support for PEBBLE_ID environment variable.
Adding a little node about PEBBLE_ID
Fixing a couple merge defects
Fixing one more merge defect
Merge pull request #2 from aleksandyr/master

Unblock fix for failed app installations and reading Pebble ID from the environment