[Issue 2097049] Adding a header to Contact Join UI

Also fixing this bug:
java.lang.RuntimeException: Unable to stop activity {com.android.contacts/com.android.contacts.ContactsListActivity$JoinContactActivity}: java.lang.IllegalStateException: get field slot from row 0 col -1 failed

Change-Id: I74025ee687944282ea9fea945ce281e9a00f6fdc
4 files changed