Workaround the broken hackery that the DOC Input plugin does, that causes it to break the Input Options Preferences in calibre 2.0
OS X: Workaround for Qt 5 bug that causes the popup menu on the author to author sort button in the edit metadata dialog to not respond if the mouse button if not released once before clicking menu entries. See #1362338 (Copy Author Sort to Author isn't working)

https://bugreports.qt-project.org/browse/QTBUG-41017
Add support for new Kobo Aura H2O and firmware 3.8.0

Kobo have announced a new device. It uses the same firmware as their
other devices. This adds the device id and name.

There is also a new firmware version released. This is version 3.8.0,
but I am allowing 3.8.1. There are no changes needed to support the
firmware.

Fixes #1362435 [Add support for new Kobo Aura H2O and firmware 3.8.0](https://bugs.launchpad.net/calibre/+bug/1362435)
Patch to Qt WebKit to fix rendering of soft hyphens in the viewer