Oauth 2.0: use space as delimiter for scopes.

lib/swagger-oauth.js

@@ -147,7 +147,7 @@ function handleLogin() {
     url += '&redirect_uri=' + encodeURIComponent(redirectUrl);
     url += '&realm=' + encodeURIComponent(realm);
     url += '&client_id=' + encodeURIComponent(clientId);
-    url += '&scope=' + encodeURIComponent(scopes);
+    url += '&scope=' + encodeURIComponent(scopes.join(' '));
 
     window.open(url);
   });