Verify Twitter OAuth tokens, invalidate and re-request when needed
|Assigned to:||Mirco Bauer||% Done:||
Once Smuxi was authorized to access Twitter it will store the OAuth tokens and simply assumes they will be valid forever. The user could revoke them though or Twitter itself might decide to invalidate them. So Smuxi needs to verify the stored OAuth tokens and remove them from the config if they are no longer valid for whatever reason. Then the user can re-authorize Smuxi.