fix gemfile for heroku
change sqlite3 to specify 1.3.8
take out sqlite3 gem temporarily
fix gemfile
set compile asset to true
temp remove sqlite3
change book page to not have thumbnails but full size images
change size of text for pages
make image responsive on page
Merge branch 'master' of https://github.com/hiddensanctum/interactive_story
update views for exercises
Merge branch 'master' of https://github.com/hiddensanctum/interactive_story
implement quiz functionality and remove unneeded assets
add mobile detection
add quiz javascript and fix turbolinks
fix turbolinks issu
add assets, fix javascript bugs