Move "full name" to front of grid columns

Also use "full name" label in fieldset, instead of "display name".

tailbone/views/people.py

@@ -69,9 +69,9 @@ class PeopleView(MasterView):
 
         g.configure(
             include=[
+                g.display_name.label("Full Name"),
                 g.first_name,
                 g.last_name,
-                g.display_name,
                 g.phone.label("Phone Number"),
                 g.email.label("Email Address"),
             ],
@@ -92,7 +92,7 @@ class PeopleView(MasterView):
     def configure_fieldset(self, fs):
         fs.configure(
             include=[
-                fs.display_name,
+                fs.display_name.label("Full Name"),
                 fs.first_name,
                 fs.middle_name,
                 fs.last_name,