Update to 2.23.0:

- version: 2.23.0
  date: 2015-04-03

  new features:
    - title: "Allow adding an empty ebook in various formats to
    existing book records by right clicking the Add Books button"

    - title: "Add ability to create additional empty formats to
    the 'Add empty book' command"

    - title: "News download: Add API to cleanly abort the download
    of an article during the preprocess stage based on the article's
    contents."

    - title: "Update the version of Qt bundled with calibre to
    5.4.1. This fixes various minor bugs, most notably, improving
    text rendering on linux."

  bug fixes:
    - title: "MOBI Input: Fix links not working in viewer for MOBI
    files that contain anchors placed on linebreak elements."

    - title: "Book details panel: Fix copying Path link by right
    clicking on it not working."

    - title: "Fix a regression that caused importing of a single
    book from a directory to fail if the directory has no ebook
    files in it"

    - title: "Column Icons: Fix apostrophes in icon filenames
    causing errors."

    - title: "Edit Book: Fix a regression that caused Remove unused
    CSS to fail on invalid CSS selectors, instead of ignoring them"

    - title: "Open With: Fix open with failing to get list of
    default programs on windows if the registry contains missing
    ProgIDs."

  improved recipes:
    - Esquire
    - Courrier International
    - CNET
    - Tagesschau


(wiz)