TODO:

* Integrate CircuitBreaker around webservice calls to Google and OSM
* Google API key should be load from config
* Enable/disable OSM and google should be configurable
** Maybe able to switch runtime

* Create admin console page where you can
** Show statistics for current dataset - DONE !!!
** Extract a list of adresses without coverage - DONE !!!
** Trigger a rebuild - DONE !!!
*** Show if a rebuild is running - DONE !!! 
*** Rebuild manager should make sure only 1 running job at a time - DONE !!!