Contacts: Add whisperpush indicator.

    - Display whisperpush icon for active encrypted
    sms sessions.

Change-Id: Ia5ec86454e00f62e1af8bc99bb15569dfb18ddc5
Contacts: Add indicators to quickcontact fragment.

    - If a contact is a primary or secure contact,
    find the indicators and set them to visible.

Change-Id: I7f2c907acfa73e6a7597bc6c51a3029431673da3
quickcontact: fallback to default secondary action drawable

If the resource package doesn't have a valid resource drawable, then fallback
to default drawable.

Change-Id: I92d36b9e4ac3a444718d924c0c992325185d80a9
JIRA: CYAN-4350
Issue: https://jira.cyanogenmod.org/browse/CYAN-4350
Signed-off-by: Jorge Ruesga <jorge@ruesga.com>