Adding known bugs/limitations

In case we have to release before they are fixed.
Replace copy icon with holo copy icon, add icon for share, change order to allow share icon to be on action bar
Merge branch 'release' into upstream
Merge remote-tracking branch 'upstream/release' into release
Merge branch 'release' into upstream
Import Google Play Services
Initialize Google Play Services
Use the Google Play fused location service when available