Merge branch 'feat-inline-reference' of daimrod/coin into master

coin/members/admin.py

@@ -35,8 +35,8 @@ class MembershipFeeInline(admin.TabularInline):
 class OfferSubscriptionInline(admin.TabularInline):
     model = OfferSubscription
     extra = 0
-    readonly_fields = ('subscription_date', 'resign_date', 'commitment',
-                       'offer', 'show_change_link')
+    readonly_fields = ('get_subscription_reference', 'subscription_date', 'resign_date',
+                       'commitment', 'offer', 'show_change_link')
 
     # FIXME: Workaround en attendant la migration vers Django >=1.8
     # À remplacer par InlineModelAdmin.show_change_link = True