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.
TinkerforgeBinding: format TinkerforgeBinding class, use spaces instead of tabs, 100 char line width
TinkerforgeBinding: refactoring move configuration to it's own class
TinkerforgeBinding: BrickletIDigitalOut4 wip
TinkerforgeBinding: refactoring DigitalActor; move to DigitalActor16 and replace with interface
improves Classic UI compatibility of Firefox 15 and higher
Influxdb persistence service initial commit
Influxdb persistence add to distribution
Influxdb persistence fixes for data types, docs
Influxdb persistence eclipse settings
Influxdb persistence persist doubles instead of floats
Influxdb persistence minor changes: loglevel
deb packaging: add JAVA_ARGS and OPENHAB_ARGS configuration variables
Merge remote-tracking branch 'upstream/master' into debfilesFixes
Merge remote-tracking branch 'upstream/master' into Influxdb
Influxdb persistence: pom.xml change name  to project.name
Influxdb persistence: fix for convertBigDecimalToNum
Influxdb persistence: handle aliases
TinkerforgeBinding: Bricklet Hall Effect
fixes issue where frames that are bound to an item do not get updated in the rest api