code: function lang(key, source) {
      //first we retrive the lang value of the root of the DOM
      var LANG = document.documentElement.lang;
      //console.log(source)
      //console.log(LANG+' '+key+' - '+source[LANG][key]);
      if (_.isObject(source) && _.isObject(source[LANG]) && _.isString(source[LANG][key])) {
          return source[LANG][key]
      } else {
          return key
      }
  
  }
docs: utility function to get the language value from keys
  on a languageSource object acording the specified language
  comming from the server and placed in the
  @param key String, the key to search of
  @param source Object, the list to search for the key
  @return string, the key value if it is in the source list, otherwise will retrun the key name