opts: make settings a singleton
make the instance of settings lowercase (app.settings)
import in tests only what's necessary
trying stuff out
topics: object instead of array based object to localStorage
read topics from localStorage
reset topics on reset to defaults
setting up rivets
use rivets for data-binding
remove some courses from assets/home.html
topics: reset models when settings model is reset
set course input disabled if topic is disabled
rivets binders test code
Revert "rivets binders test code"

This reverts commit cffc058b53aa6225834824b2c91e175cf23a7807.
remove commented template
add feedback section
remove pref attribute from wilting-threshold
disable topic if all courses are disabled
move allCoursesDisabled code to topic model
make disabled the adjacent spans of disabled checkboxes grey