use own delete icon (#3674)

src/collective/dms/basecontent/browser/column.py

@@ -119,7 +119,7 @@ class DeleteColumn(IconColumn, LinkColumn):
     linkName = "delete_confirmation"
     linkContent = PMF('Delete')
     linkCSS = 'edm-delete-popup'
-    iconName = "delete_icon.png"
+    iconName = "++resource++delete_icon.png"
     linkContent = PMF(u"Delete")
 
     def actionAvailable(self, item):

src/collective/dms/basecontent/browser/configure.zcml

@@ -23,6 +23,11 @@
       image="static/img/extedit_icon.png"
       />
 
+  <browser:resource
+      name="delete_icon.png"
+      image="static/img/delete_icon.png"
+      />
+
   <browser:page
       for="collective.dms.basecontent.dmsdocument.IDmsDocument"
       name="view"