Adding geocode controller (not sure if it will stay a controller or be moved to utils)
updated expedition controller to send virtuals alon with GET requests
Added pre-save hook to fetch lat/lng if only an address is provided
updated expedition test to test geocoding
updated config.js and routes.js with API key for google geocode and with route to expose geocode (not sure if exposing this method in the API is necessary)
package.json auto updated ??