integrate config to toggle eventing rule creation for a particular sos instance
fix startup initialization
Merge branch 'hotfix/eventing-startup'

Conflicts:
	sensorwebclient-ses-rpc/src/main/java/org/n52/server/service/rpc/RpcSesRuleServlet.java
	sensorwebclient-ses-rpc/src/main/java/org/n52/server/service/rpc/RpcSesUserServlet.java