Use keypresses for fine adjustment of selection rect
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Exporting of image data from the canvas
Update metadata in the file from calibre db when opening for Tweaking
Emblems for the opf and ncx files
Edit metadata : Add the ability to trim covers manually

Edit metadata dialog: Add the ability to trim covers manually, if automatic trimming is not satisfactory. Fixes #1256054 [[Enhancement] Enhanced cover picture trim](https://bugs.launchpad.net/calibre/+bug/1256054)
Do not always start with inspector window closed
ebook-tweak: Add an option to open a specific file on startup
Fix off by one error when finding closest line number for an element
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Rename the module in which canvas lives
Rename method
Add copy and paste actions
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Add a trim and accept button
Error message when pasting with no img in the clipboard
Update Kommersant. Fixes #1254508 [kommersant recipe doesn't download content](https://bugs.launchpad.net/calibre/+bug/1254508)
Enable TAB completion for the simple REPL as well
Kobo driver: Allow sending kepubs to older kobo devices as well

Refactor the code to allow sending kepubs to the older devices as well.
Fixes #1257972 [Move sending kepubs from KOBOTOUCH to KOBO driver](https://bugs.launchpad.net/calibre/+bug/1257972)
Allow pasting into the selection only