Update calibre to 2.47.0:

2.47

New Features
* A new tool to easily export and import all calibre data -- books,
settings and plugins
* Get Books: Add plugins for Amazon Australia and Amazon India.
Also restore the Amazon EU plugins.

Bug Fixes
* PDF Input: Fix conversion of PDF documents that contain ASCII
control codes in their outlines not working.
* Edit book: Fix image compression utilities opening a new console
per invocation on windows
* Image compression: If the compression tools return a zero byte
image ignore it and use the original image
* Fix a regression that caused book titles in the Book Details
panel to become clickable

2.46

New Features

    PDF Input: Add support for PDF outlines (bookmarks), if present, they are used as the metadata Table of Contents.
    Book polishing: Add tool to losslessly compress images in the book in order to reduce its filesize, without affecting image quality
    Edit Book: Add a new tool to compress images in the book losslessly, accessed from the Tools menu
    Kobo driver: add support for new Kobo firmware
    Bulk metadata edit dialog: Allow entering fractional numbers into the series number start with control.
    Speed up moving libraries by using hardlinks instead of file copies when moving to a location on the same filesystem
    Get Books: Disable the Amazon EU stores, at Amazon's request

Bug Fixes

    Fix moving libraries via calibre leaving behind a copy of the metadata_db_prefs_backup.json file in the original library folder
    MOBI Input: Warn about corrupted trailing data entries, instead of aborting. Getting some, even partially corrupted text is better than no text.
    Book details: Fix single value custom text column not clickable.
    Saving to disk: Fix custom date column being rendered in GMT instead of the local time zone when used in a save to disk template.

(wiz)