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Add 4 python-related docsets.
Merge pull request #16 from iamaziz/master

Add 4 python-related docsets.
Processed docsets/Cython/Cython.tgz
Processed docsets/iPython/iPython.tgz
Processed docsets/Scrapy/Scrapy.tgz
Processed docsets/Sphinx/Sphinx.tgz