cubicweb-addressbook #2189824 Don't ask for gmap-key on create & enable automatic mode [validation pending]

gmap-key gets in the way of creating an instance in automatic mode, and is a bit too verbose for a c-c create. It would be nice if it would be level 2

prioritynormal
typeenhancement
done in1.6.4
load0.100
load left0.000
closed by#7758520340cd make gmap-key more optional (closes #2189824)