Edit Book: New tool to specify semantics in EPUB books (semantics are items in the guide such as preface, title-page, dedication, etc.). Fixes #1287025 [[ebook-edit] Implement of defining more reference types of guide section](https://bugs.launchpad.net/calibre/+bug/1287025)
Wireless device: remove books from the metadata cache that are no longer on the device.
Update the CC production release version number
Merge branch 'master' of https://github.com/cbhaley/calibre