Add Lighting1.ENERGENIE to subtypes
Add support for group on/off by setting "G" as unit code.  Tested with energenie only
Change group from "G" to "0".
Support group send/receive for lighting1/lighting2
Merge pull request #966 from mattwire/rfxcom

Add support for Energenie ENER010 and group on/off commands for lighting1/lighting2.