add balance promotion shop promotion

app/models/balance_promotion.rb

@@ -75,7 +75,7 @@ class BalancePromotion < ActiveRecord::Base
     rails_admin do 
 
         navigation_label '促销管理'
-        weight -100
+        weight -400
 
         list do 
           filters [:id,:name,:begin_time,:end_time]

app/models/present.rb

@@ -15,7 +15,7 @@ class Present < ActiveRecord::Base
   end
   rails_admin do
     navigation_label '促销管理'
-    weight -400
+    weight -600
     list do
       filters [:wx_user_id,:send_prod1,:source]
       field :id