Fix

• on oauth1 signature (@danielbmarques)
• use of oauthswift into app extension
• request that start with &

Change

• swift 2.2 warnings (@lyptt)
• allow to refresh token for oauth2 (@fabiomassimo )
• add an enum OAuthSwiftErrorCode (@fabiomassimo )
• added a method to OAuthSwiftClient to perform requests via NSURLRequest objects (@FGoessler)
• allow to cancel OAuthSwiftHTTPRequest (@FGoessler)

Other

• added to demo Goodreads, Typetalk, Buffer, Trello