Disable test_add_contact_to_favorites.py due to bug 891430
Merge pull request #1097 from davehunt/disable-failing-tbpl-test

Disable test_add_contact_to_favorites.py due to bug 891430
# Issue: 1098 Investigate and fix tests failing because of Cell Data
Merge pull request #1099 from bebef1987/xfail_data

Xfail Issue: 1098 Investigate and fix tests failing because of Cell Data