VanillaJS: change "complete" to "completed"

Ref #475

AngularJS: Unit Tests

Remove TodoView, which isn't even used.

Refs #475

Ref #475

Add link to source to footer of every example (close #369)

Update to derby/racer master

Ref #475

Backbone: Use underscore instead of lodash

lodash doesn't support _#chain which backbone.localStorage requires.

#475

#475

#475

#475

#475