tmp
migrate app.js to using browserify
migrate mobile js to browserify
remove junk
add client bower
change client build to use task instead of file rules
use rake to build styles
add "rake build"
move all javascript files to "src"
move css into src
fix up rakefile again
add some files
Merge branch 'browserify'

Build client with browserify instead of requirejs
npm: add js-yaml
template: make it easy to include yaml trailer in block
template: multiple choice quiz
fix base directive bug
quiz: normalize choices data
precompiles hbs templates
prelim implementation of multiple choice quiz