Maxcube: Support On/Off commands to radiator thermostats and correctly support 0.5 deg increments.

ON command will set radiator thermostat to full 'On' (i.e. 30.5 deg). 'On' is displayed on unit
OFF command will set radiator thermostat to full 'Off' (i.e. 4.5 deg). 'Off' is displayed on unit
Additional logging to start support MaxCube Ecoswitch
Add Lighting1.ENERGENIE to subtypes
Add support for group on/off by setting "G" as unit code.  Tested with energenie only
Merge remote-tracking branch 'upstream'
Change group from "G" to "0".
Support group send/receive for lighting1/lighting2
DateTimeType first tries to parse a string with timezone and falls back to the parser without timezone.
Use Double.parseDouble for squeezebox volume and then cast it to an int otherwise a non integer value causes a crash
Merge remote-tracking branch 'upstream'
Merge remote-tracking branch 'sumnerboy12/squeezebox_reconnect_issue'
Merge branch 'squeezebox'
Merge branch 'rfxcom'
Add Astro Binding
Merge remote-tracking branch 'gerrieg/master'
Merge branch 'squeezebox'
DateTimeType: DATE_FORMATTER_WITHTZ => DATE_FORMATTER_WITH_TZ
Fix for issue #900. Network health refresh interval could not be changed.
Merge branch 'astro'
Merge branch 'master' of https://github.com/openhab/openhab
Merge branch 'master' of https://github.com/openhab/openhab
Merge branch 'master' of https://github.com/openhab/openhab