Re-enable attachments on sandstorm

Credits go to @dwrensha who implement the required MongoDB upgrade on
meteor-spk.

client/components/cards/cardDetails.jade

@@ -79,8 +79,7 @@ template(name="cardDetailsActionsPopup")
   ul.pop-over-list
     li: a.js-members {{_ 'card-edit-members'}}
     li: a.js-labels {{_ 'card-edit-labels'}}
-    unless isSandstorm
-      li: a.js-attachments {{_ 'card-edit-attachments'}}
+    li: a.js-attachments {{_ 'card-edit-attachments'}}
   hr
   ul.pop-over-list
     li: a.js-move-card {{_ 'moveCardPopup-title'}}

sandstorm-pkgdef.capnp

@@ -22,7 +22,7 @@ const pkgdef :Spk.PackageDefinition = (
     appTitle = (defaultText = "Wekan"),
     # The name of the app as it is displayed to the user.
 
-    appVersion = 4,
+    appVersion = 5,
     # Increment this for every release.
 
     appMarketingVersion = (defaultText = "0.9.0-rc1"),