Offline use support to gnome-contacts
Submitted by Bastián
When you set up an online account to manage / sync contacts (eg google), this is not available when there is no internet connection.
It is important to use the contact information locally when there is no internet connection (schedule emails, watch phone numbers, list an address, etc). Other applications of the same type, keep the information available, and any change is then synchronized (in the same way that the contacts application on android).
Gnome 3.16 (fedora rawhide)