Improve analytics

Removes the existing buggy & verbose analytics classes. Instead adds
the AnalyticsUtil. Like before, analytics will automatically be added
to all activities. They need to be manually setup for fragments
that you care about.

Improving analytics CL #2/4

Bug: 18039620
Change-Id: I99a4062e09e7614e5369d795132172d4d1867600
24 files changed
tree: cbfcf8edaf688ed691e0bf9746863fc74cbaab5b
  1. src/
  2. TestCommon/
  3. tests/