Adds localForage caching behavior (bug 1001779):

* Include localForage in package.
* Use localStorage driver when running in damper, IndexedDB driver when
  packaged.
* Add module for getting/setting apps, categories, and homepage data in
  localForage.
* Preload data included with package, if necessary.
* Removing blocking on consumer_info calls.
Disable offline cache
add lf.v0.7, get db.js up and running
fix when minified