Minor fixes to the I18n code of routing

MapQuest instructions still don't translate, as that backend doesn't accept
simple language locals but require country codes as well.

app/assets/javascripts/routing_engines/graphhopper.js

@@ -1,6 +1,7 @@
 GraphHopperEngine = function(vehicleName, vehicleParam, locale) {
     this.vehicleName = vehicleName;
     this.vehicleParam = vehicleParam;
+    //At this point the local system isn't correctly initialised yet, so we don't have accurate information about current locale
     this.locale = locale;
     if (!locale)
         this.locale = "en";
@@ -10,12 +11,13 @@ GraphHopperEngine.prototype.createConfig = function() {
     var that = this;
     return {
         name: "javascripts.directions.engines.graphhopper_"+this.vehicleName.toLowerCase(),
+            creditline: '<a href="http://graphhopper.com/" target="_blank">Graphhopper</a>',
         draggable: false,
         _hints: {},
         getRoute: function(isFinal, points) {
             var url = "http://graphhopper.com/routing/api/route?" 
                     + that.vehicleParam 
-                    + "&locale=" + that.locale;
+                    + "&locale=" + I18n.currentLocale();
             for (var i = 0; i < points.length; i++) {
                 var pair = points[i].join(',');
                 url += "&point=" + pair;

app/assets/javascripts/routing_engines/mapquest.js

@@ -15,7 +15,7 @@ MapQuestEngine.prototype.createConfig = function() {
     var that = this;
     return {
         name: "javascripts.directions.engines.mapquest_"+this.vehicleName.toLowerCase(),
-        creditline: 'Directions courtesy of <a href="http://www.mapquest.com/" target="_blank">MapQuest</a> <img src="http://developer.mapquest.com/content/osm/mq_logo.png">',
+        creditline: '<a href="http://www.mapquest.com/" target="_blank">MapQuest</a> <img src="http://developer.mapquest.com/content/osm/mq_logo.png">',
         draggable: false,
         _hints: {},
         MQ_SPRITE_MAP: {
@@ -45,7 +45,7 @@ MapQuestEngine.prototype.createConfig = function() {
             url+="&from="+from.join(',');
             url+="&to="+to.join(',');
             url+="&"+that.vehicleParam;
-            //url+="&locale=" + I18n.currentLocale(); //Doesn't actually work. MapQuest requires full locale e.g. "de_DE", but I18n only provides language, e.g. "de"
+            //url+="&locale=" + I18n.currentLocale(); //Doesn't actually work. MapQuest requires full locale e.g. "de_DE", but I18n may only provides language, e.g. "de"
             url+="&manMaps=false";
             url+="&shapeFormat=raw&generalize=0&unit=k";
             this.requestCORS(url);

app/assets/javascripts/routing_engines/osrm.js

@@ -13,7 +13,7 @@ OSRMEngine.prototype.createConfig = function() {
     var that = this;
     return {
         name: "javascripts.directions.engines.osrm_"+this.vehicleName.toLowerCase(),
-        creditline: 'Directions courtesy of <a href="http://project-osrm.org/" target="_blank">OSRM</a>',
+            creditline: '<a href="http://project-osrm.org/" target="_blank">OSRM</a>',
         draggable: true,
         _hints: {},
         getRoute: function(isFinal,points) {