Fix #1363948 [Empty areas in window Create catalog dialog](https://bugs.launchpad.net/calibre/+bug/1363948)
Small performance improvement
DOCX Input: Fix non-breaking hyphens being ignored
Ensure splash screen is hidden if there is an error during startup, so that the error message does not appear behind the splash screen thanks to regressions in Qt 5
Workaround for Qt 5 behavior change on OS X which prevented error handling during startup on OS X to not work
Fix #1363990 [Create catalog dialog - save presets](https://bugs.launchpad.net/calibre/+bug/1363990)
Conversion: Fix incorrect conversion of CSS when the input document uses the same CSS class name in both upper and lower case. Fixes #1328552 [Private bug](https://bugs.launchpad.net/calibre/+bug/1328552)
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Update Common Dreams
Additional product ID for the Onyx T68
E-book viewer: Fix text not being reflowed when resizing the viewer window and only the height changes.
Note about Google's recent breaking of SMTP
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Workaround for Qt 5 bug that causes text copied to the clipboard to be lost when quitting the viewer on windows.

https://bugreports.qt-project.org/browse/QTBUG-41125
Make the template used to create empty EPUB files customizable by the user
Metadata jacket: Allow customizing the jacket template to show the tags in alphabetical order
Refactor message box to not use uic to generate the UI

Also fixes incorrect resize of message box when toggling detailed
message.
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When removing a library from calibre, allow undoing the action