New hoster plugin UpleaCom
Improve debug logging in load/download method
[SimpleCrypter][SimpleHoster] Fix typo in _error method call
[HookManager] Remove __threaded__ checks
Code cosmetics: items() -> iteritems()
[Plugin] Improve retry and wait methods
[SimpleCrypter] Wait method
[SimpleHoster] Improve wait method
Update plugins to last changes
Code cosmetics: plugin class attributes