add basic flashcard model, view, router
main route now shows individual card question and answer
previous and next buttons now work
remove todolist css from index
flip button now unhides answer
stub out add card view
attempt to trigger new card view through model rather than router
mediator implemented, can now add card
form submit event now registers with Backbone Events
views now switch, issue with this.serialize in add.js
now adds new cards to collection
hella cleanup
Merge pull request #1 from joeyyang/addQuestionModel

Add question model