Add viewing flag for base layouts instead of using parentView
Merge branch 'master' of https://github.com/airbnb/rendr into lazy-load-base-layout
Address changes for unused var, global this binding and collection usage in view.js
Reconcile addition of collection to logic for off
Merge pull request #103 from mduvall/lazy-load-base-layout

Add viewing flag for base layouts instead of using parentView