Refactored config discovery bundle to use declarative services.

Signed-off-by: Dennis Nobel <d.nobel@external.telekom.de>
Added removal of inbox entry when thing is added to ThingRegistry.

Signed-off-by: Dennis Nobel <d.nobel@external.telekom.de>
Merge branch 'config-discovery' of https://github.com/qivicon/smarthome
Removed version for org.osgi.service.component

Signed-off-by: Oliver Libutzki <o.libutzki@external.telekom.de>
Merge branch 'config-discovery'

Signed-off-by: Oliver Libutzki <o.libutzki@external.telekom.de>