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
initial commit for jointspace binding
first version of jointspace binding that is able to send remote commands
Merge remote-tracking branch 'upstream/master'
Additional logging to start support MaxCube Ecoswitch
DateTimeType first tries to parse a string with timezone and falls back to the parser without timezone.
Merge branch 'master' of https://github.com/openhab/openhab
DateTimeType: DATE_FORMATTER_WITHTZ => DATE_FORMATTER_WITH_TZ
Implemented polling of states
added json-simple lib as dependency
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
Initial commit of a new Homematic binding.
Wrong parameters for RPC function init

According to the HomeMatic XML RPC specification, to unregister a server "interface_id" needs to be an empty string, not the URL. I currently don't have a CCU to test this. So please check, if the change works.
Fixed wrong compiler target.
Fixed wrong init parameter in XML-RPC release.
added checking if TV is online befor polling