hmdev/AozoraEpub3 — pull request #1 by gebner (2012-10-29 21:34:11+00:00)
Title: Make generated epubs validate with epubcheck, and support *.jpg images

I have tried to validate the generated epubs with [epubcheck](http://code.google.com/p/epubcheck/), however there were 2 warnings:

1. The element is empty. The submitted patch only outputs a element if necessary, i.e. if there is a cover or toc.
2. The mimetype is not written using the STORED compression method. With the submitted patch, Readium (and my Kobo Glo) can still read the resulting files. AFAICT, the original problem was because mimeTypeEntry was written before the checksum was set.

The other 2 patches improve support for images with a *.jpg extension in zip files.

Gabriel.