Upgrade spree to point to 1c3dfc7fb

This will fetch latest changes applied in the fork.

Gemfile.lock

@@ -8,7 +8,7 @@ GIT
 
 GIT
   remote: https://github.com/coopdevs/spree.git
-  revision: 6c3d8841018de80f41c9400611de2e8a51923711
+  revision: 1c3dfc7fb48cde32f7dc49a59c1daf65a3ee6974
   branch: 2-0-4-stable
   specs:
     spree (2.0.4)
@@ -137,16 +137,10 @@ GEM
       sprockets (~> 2.2.1)
     active_model_serializers (0.8.3)
       activemodel (>= 3.0)
-    active_utils (2.2.3)
-      activesupport (>= 2.3.11)
-      i18n
-    activemerchant (1.43.3)
-      active_utils (~> 2.0, >= 2.0.1)
-      activesupport (>= 2.3.14, < 5.0.0)
+    activemerchant (1.78.0)
+      activesupport (>= 3.2.14, < 6.x)
       builder (>= 2.1.2, < 4.0.0)
-      i18n (~> 0.5)
-      json (~> 1.7)
-      money (< 7.0.0)
+      i18n (>= 0.6.9)
       nokogiri (~> 1.4)
     activemodel (3.2.21)
       activesupport (= 3.2.21)