- Remove FAB for adding rules, move to last preference.
- Add first-class event condition type and config sub-page.
- Always show radio buttons when adding rules.
- Add new data model for event rules.
- Add stub condition provider for event rules (always false for now).
- Add rule-type icons to rule preference rows.
Bug: 20064962
Change-Id: Id5acde371eb2e7d22b1f195459897614db5ba80a