Fix bulk load input plugin config if exist custom plugin. Plugin Doc
input.

Change-Id: I386d4236dc01435c81ab599895a673df871b8572
Edit Book: Fix a crash when performing some image editing operations on 64 bit calibre builds
cleanup .gitignore
Fix third party conversion plugins not working with bulk conversions

Merge branch 'master' of https://github.com/igieon/calibre
pep8
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Metadata download: Round the downloaded ratings so that, for example, 3.6 stars becomes 4 stars instead of 3 stars. Fixes #1335696 [Amazon Ratings metadata download only rounds down](https://bugs.launchpad.net/calibre/+bug/1335696)
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