Added battery monitor and refactored classes

Added BatteryMonitor to handle all battery changes
Renamed E34ClockWidget removing E34 from name
Adapted manifest accordingly
Removed superfluous layout description
Added software license and cc for images
Implemented battery indicator

Removed E34Clock enum
Added BatteryService to broadcast and manage batterystatus updates
Renamed BatteryMonitor to BatteryInfo
Adapted widget to use new battery service
Introduced Constants to managed intents from e34clock
Adapted manifest to use new service and react to the new intents.
Added copyright information
Added alarm info, fixed battery status and added date

Added code to show alarm time and display the alarm indicator
Fixed minor bug in display of battery indicator
Added code to set the date