Enables safe minification of JS app.
Create Character factory to retrieve characters from Marvel's API.

For the time being, we're hardcoding the public key needed to make
requests to the API, as well as the hash and ts values.
Create CharactersListCtrl to access list of Characters

Adds controller and view, to display a list of characters including
pagination controls.
Adds search support to CharactersListCtrl

View now includes a search field where the user can enter a character's
name to trigger a query to the API.