[Tools] Updated genplugin.py script for Qt5.
[Zalil] Dumb uploader plugin stubs.
[Zalil] Added PendingUploadBase.
[Zalil] Added ServiceBase.
[Zalil] Added ServicesManager.
[Zalil] Store & pass ICoreProxy_ptr to services.
[Zalil] Richer PendingUploadBase.
[Zalil] Added BitcheesePending.
[Zalil] Added BitcheeseService.
[Zalil] ServicesManager::fileUploaded().
[Zalil] Implemented ServicesManager::Upload().
[Zalil] Instantiate the ServicesManager.
[Zalil] Implement IWebFileStorage.