WS-2589: adding a warning if genre is present

Author: Yaison

lib/Api.js

@@ -102,6 +102,9 @@ function Api(userKey, serviceURL) {
 Api.prototype.rosette = function(endpoint, callback) {
 
     var api = this;
+    if (typeof(api.parameters.genre) !== 'undefined' && api.parameters.genre != null) {
+        console.warn("The genre parameter is deprecated and will be removed in a future release.");
+    }
     endpoint = require("./" + endpoint);
     var e = new endpoint();