Show hamburger promo after users start using the App.

When users
1) clicked a contact to quickcontact and back to PeopleActivity,
2) clicked search and back to PeopleActivity,
hamburger promo should be displayed.
Do not show the promo when hamburger is clicked before.

BUG 29877098

Change-Id: Ic3ae8076de1e925765df06bf9140c479f4ce3504
5 files changed