Add new EPUB reader based on epub.js reader

README.md

reader/static/css/epubjs_reader/annotations.css

reader/static/css/epubjs_reader/main.css

reader/static/css/epubjs_reader/normalize.css

reader/static/css/epubjs_reader/popup.css

reader/static/css/fonts/fontello.eot

reader/static/css/fonts/fontello.svg

reader/static/css/fonts/fontello.ttf

reader/static/css/fonts/fontello.woff

reader/static/img/epubjs_reader/annotator-glyph-sprite.png

reader/static/img/epubjs_reader/annotator-icon-sprite.png

reader/static/img/epubjs_reader/apple-touch-icon.png

reader/static/img/epubjs_reader/cancelfullscreen.png

reader/static/img/epubjs_reader/close.png

reader/static/img/epubjs_reader/fullscreen.png

reader/static/img/epubjs_reader/loader.gif

reader/static/img/epubjs_reader/menu-icon.png

reader/static/img/epubjs_reader/save.png

reader/static/img/epubjs_reader/saved.png

reader/static/img/epubjs_reader/settings-s.png