Revision 18419: 30_HUEBridge.pm: ignore non-lights for createGroupReadings calculation
30_HUEBridge.pm: ignore non-lights for createGroupReadings calculation
Source: Revision 18419: 30_HUEBridge.pm: ignore non-lights for createGroupReadings calculation (http://svn.fhem.de/trac/changeset/18419/trunk)