fix(i18n): do not save user language for now

src/middleware.js

@@ -197,7 +197,6 @@ var getUserLanguage = function(req, callback){
     var acceptable = _(req.acceptedLanguages).map(function(lang){
       return lang.slice(0, 2);
     }).uniq().value();
-
     var matches = _.intersection(acceptable, langCodes);
     return matches.length > 0 ? matches[0] : 'en';
   };
@@ -209,10 +208,13 @@ var getUserLanguage = function(req, callback){
         return callback(null, _.find(avalaibleLanguages, {code: user.preferences.language}));
       }else{
         var langCode = getFromBrowser();
-        if(user && translations[langCode]){
-          user.preferences.language = langCode;
-          user.save(); //callback?
-        }
+        // Because english is usually always avalaible as an acceptable language for the browser,
+        // if the user visit the page when his own language is not avalaible yet
+        // he'll have english set in his preferences, which is not good. 
+        //if(user && translations[langCode]){
+          //user.preferences.language = langCode;
+          //user.save(); //callback?
+        //}
         return callback(null, _.find(avalaibleLanguages, {code: langCode}))
       }
     });