IDPF/epubcheck — pull request #385 by tofi86 (2014-07-09 11:54:33+00:00)
Title: Updates to readme files

Some of the useful information in `README.md` got lost during the B&N merge (#383).
This is a try to merge back all the information and also updates the readme files with newest contributors.
it also deletes the readme.txt file as we don't need both...

feel free to merge!