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Add empty book: When adding empty book records to the library, add an option to also create empty EPUB files. Useful if you intend to subsequently edit these files with the calibre editor. You can access the add empty books feature by right clicking the Add Book button.
Remove the need for -- when calling calibre-debug --diff
Prevent Content-Transfer-Enconding headers from confusing encoding detection in the diff tool
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Ignore the translations folder entirely since it is now version controlled in a separate github project.
Implement extraction of user manual strings for translation
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String fixes
When generating sphinx documentation from command line usage/options, try to recognize and mark references to option in the help text