Initial implementation of pretty printing
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Metadata download: Update plugin to get covers from google image search to handle changes to the google website. Fixes #1254973 [Google Images metadata search yields no results](https://bugs.launchpad.net/calibre/+bug/1254973)
Detect fonts with obsolete mimetypes as well
Merge branch 'master' of https://github.com/cbhaley/calibre
Cache wireless device metadata on a per-device basis. This change will force devices to send all metadata on the first connect after upgrading calibre.