chitsaou/oauth2-api-sample — pull request #1 by wildjcrt (2013-12-20 08:37:54+00:00)
Title: services/oauth2/access_token_validation_service#sufficent_scope?, scopes...

services/oauth2/access_token_validation_service#sufficent_scope?, scopes array should be string.

When comparing two sets, they mismatch and it shows below.

```ruby
#
#
```

This fix will force scopes array to string.