Fix #1280040 [[FYI] - Left overs in temp](https://bugs.launchpad.net/calibre/+bug/1280040)
version 1.24
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Allow pressing enter to edit files from the files browser
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update format detection in publio store
update author detection in cdp store
update ebooks detection in woblink store
Get Books: Update the Woblink, Publio and CDP store plugins
update author detection in woblink store
update author detection in wolnelektury store
Merge branch 'master' of https://github.com/t3d/calibre
Edit book: Fix regression that caused program to stop responding when quitting via File->Quit
Dont mark keyboard shortcuts for translation. Fixes #1280403 [Double key assignment (in german only?)](https://bugs.launchpad.net/calibre/+bug/1280403)
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Read XMP metadata from PDF files
Add support for reading/writing XMP metadata packets to the PoDoFo bindings
Fix #1280606 [Similar Books doesn't escape double quotes in search string](https://bugs.launchpad.net/calibre/+bug/1280606)
Some documentation
Edit book: When autofixing file extensions <-> mimetype mismatch, if the file in question is int he spine, chage the file extension rather than the mimetype, as that is more likely to be the correct fix.