IDPF/epubcheck — pull request #435 by rdeltour (2014-08-31 19:14:27+00:00)
Title: Initial (incomplete) support for EDUPUB

* Import schemas from @mattgarrish
* custom OPF checks based on the `edupub` `dc:type` value
* custom XHTML checks based on the `edupub` `dc:type` value