[FEATURE] Added sort order for each column and faster filtering without re-draw
Fixed a JSHinterror
Re-integrated the delay which has been lost in the middle of the refactor
Big refactor + store + models!

- created a basic store
- created models
    - package
    - npm-user
    - github-user
    - github-repo
- re-wrote the main controller and its dependencies
Using ember-img-cache
Merge branch 'master' of https://github.com/gcollazo/ember-cli-addon-search into feature/sort-order-and-faster-filter

Conflicts:
	app/controllers/index.js
	app/routes/index.js
	bower.json
Fixed the "nothing found" and added filtered flag
Merge branch 'huafu-feature/sort-order-and-faster-filter'
Minor coding style changes for uniformity.