Merge pull request #27 from hewolf/master

execute excutable in controller
Merge pull request #28 from hewolf/master

call the c++ executable from java using a separate actor
Merge pull request #29 from hewolf/master

relaod the geojson file every 2 seconds, enabled the update of # of cars
automatically parse analyzing result and update geojson file in real time
Merge pull request #30 from binfeng/develop

automatically parse analyzing result and update geojson file in real tim...
Merge remote-tracking branch 'upstream/master'
merge work by Bin Feng
integration