refactoring of the MongoDBService to be configurable (TEST, PROD, etc.)

apply the new service to all tests

java/com.sap.sailing.httpservicetracker/META-INF/MANIFEST.MF

@@ -5,7 +5,8 @@ Bundle-SymbolicName: com.sap.sailing.httpservicetracker
 Bundle-Version: 1.0.0.qualifier
 Bundle-Vendor: SAP
 Bundle-RequiredExecutionEnvironment: JavaSE-1.6
-Require-Bundle: org.eclipse.osgi.services,
- org.eclipse.osgi,
- javax.servlet
 Export-Package: com.sap.sailing.httpservicetracker
+Import-Package: javax.servlet,
+ org.osgi.framework;version="1.6.0",
+ org.osgi.service.http;version="1.2.1",
+ org.osgi.util.tracker;version="1.5.0"