commit 35aa11e0c5552c5bdf318353ab36fed608b5afa5
author Wenyi Wang <wenyiw@google.com> Sun Apr 17 12:53:46 2016 -0700
committer Wenyi Wang <wenyiw@google.com> Sat Apr 23 12:57:03 2016 -0700
tree 3ad69076b20ab4ec76678d3ba0f7f0fbdb4c8fb8
parent 8c30aba41d49c30e74556b955c4b91100081385d

Add categories to Settings

- Screenshots: https://screenshot.googleplex.com/M0THHitYLg6.png
- Use PreferenceCategory to show section title.
- When removing a preference programmatically, we need to remove it from
  the PreferenceCategory it belongs to, rather than from
  getPreferenceScreen().
- Also add category and title for "contacts metadata".
- Delete string "Manage accounts" that was not removed in ag/938570
- This CL doesn't affect Dialer.

Bug 27687799

Change-Id: Ifa664f6ba50b784e4d90ef87aef3f3e35e27b209