issue #84 : using media queries AND the good indentation.
Merge pull request #148 from bobyjoe91/gh-pages

issue #84 : using media queries AND the good indentation.
Issue #151 Fixed downloader
bug #74 Default font size should be

The « getter » of fontSize was not called, because the wrong attribute
(._book) was calling it. We added a new attribute (._bookViewer) to the
object ChapterContents, so then it can call the right function.
Merge pull request #144 from IndianBoyJii/gh-pages

Byt #74 default font size
Issue #59
Add install button to install app