- minor changes to some icons (can't see a difference in some of the
cases?), larger changes to others (e.g. mark unread)
- xhdpi assets for a bunch that were missing
Change-Id: Id71d22aa50440cf6c83e4244bb807e3d237949c6
Icons reported as unused by running the script "findUnusedAssets". This
script checks for any reference to a drawable in all XML and Java files.
Some _holo_light icons are removed as they are no longer in the designer
git and should not be used.
Change-Id: Ie42d13394d6d81d35fcb48f8f76c6abd4cb09ee4
