driftyco/ionic — pull request #2368 by wesleycho (2014-10-09 00:28:39+00:00)
Title: feat(viewService): Corrects showBack logic

- Corrects the logic used to determine showBack in the event broadcast
of `$viewHistory.historyChange`
- Registers ion-nav-view with a `$historyId` in order to correctly
detect back state when element instance is registered

This addresses #2366.