Iteration on Fast-Track, new assets drop, account menu icon.

New asset drop for Fast-Track with new style disambig with
"set default" checkbox, will be hooked up soon.  Cleanup of
legacy API references in some places.

Adjust action building to query against PackageManager,
which now brings in best-matching app icons.  Previously
the data provider needed to supply icons.  This solves the
case where people use third-party apps for SMS, etc.

We also use the ResolveInfo to populate the content
description for the track icons so that Fast-Track actions
use the system accessibility APIs.
53 files changed