Autocomplete Directory#slug field from title.

Current spec status: 717 examples, 0 failures in 8.6 seconds.
Refactor CoffeeScript with concerns, helpers.
Autocomplete Page#slug field from title.

Current spec status: 717 examples, 0 failures in 7.74 seconds.
Merge pull request #11 from sleepingkingstudios/feature-coffee-framework

Autocomplete Directory#slug, Page#slug.