Display note count on network graph.

app/helpers/graph_helper.rb

 module GraphHelper
-  def join_with_space(ary)
-    ary.collect{|r|r.name}.join(" ") unless ary.nil?
+  def get_refs(commit)
+    refs = ""
+    refs += commit.refs.collect{|r|r.name}.join(" ") if commit.refs
+
+    # append note count
+    notes = @project.notes.for_commit_id(commit.id)
+    refs += "[#{notes.count}]" if notes.any?
+
+    refs
   end
 
   def parents_zip_spaces(parents, parent_spaces)

app/views/graph/show.json.erb

@@ -13,7 +13,7 @@
         },
         time: c.time,
         space: c.spaces.first,
-        refs: join_with_space(c.refs),
+        refs: get_refs(c),
         id: c.sha,
         date: c.date,
         message: c.message,