Updated oauth_policy_spec to ensure it nils OAuthPolicy.token -- since this can be affected by other tests.
Updated oauth_policy_spec to ensure it nils OAuthPolicy.token -- since this can be affected by other tests.

jayshreeanand/ruby-trello,playtestcloud/ruby-trello,mevic/ruby-trello,CodingZeal/ruby-trello,brycemcd/ruby-trello,pandamako/ruby-trello,jeremytregunna/ruby-trello,joneslee85/ruby-trello,danmcp/ruby-trello,dotmartyr/ruby-trello,gorenje/ruby-trello,rossta/ruby-trello,ksamc/ruby-trello,MrPowers/ruby-trello,naiyt/ruby-trello