Edit metadata dialog: Remember window size for the cover download window
Ensure that the rendered dates are always in the same language as the calibre interface, regardless of system language setting
Fix #1303181 [ebook-device cp -f gives exits with error when trying to copy to kindle](https://bugs.launchpad.net/calibre/+bug/1303181)
Refactor HTML syntax highlighter too keep track of tag nesting

This is needed for the eventual implementation of inline spellcheck
Start work on managing dictionaries in calibre
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Add ISO 3166 country codes
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Implement loading of both builtin and user installed dictionaries
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Start work on dialog to manage user installed dictionaries
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Start work on adding dictionaries