R1:34e134b34630

Modernized Phriction's History Controller

Summary:
Refs T2686

Migrated History view over to `PhabricatorObjectItemView`

Change type are currently depicted with object bar colors, switch to icon is planned though implementation remains unclear

Test Plan: Looks pretty good

Reviewers: epriestley, chad, btrahan

Reviewed By: epriestley

CC: aran, Korvin

Maniphest Tasks: T2686

Differential Revision: https://secure.phabricator.com/D5404