BranchGraph now loads async

Centralized keyboard and drag events for BranchGraph

lib/gitlab/graph/commit.rb

@@ -28,7 +28,7 @@ module Gitlab
         h[:refs]    = refs.collect{|r|r.name}.join(" ") unless refs.nil?
         h[:id]      = sha
         h[:date]    = date
-        h[:message] = escape_once(message)
+        h[:message] = message
         h[:login]   = author.email
         h
       end

lib/gitlab/graph/json_builder.rb

@@ -17,16 +17,15 @@ module Gitlab
         @commits = collect_commits
         @days = index_commits
       end
-
-      def days_json
-        @days_json = @days.compact.map { |d| [d.day, d.strftime("%b")] }.to_json
+      
+      def to_json
+        {
+          days: @days.compact.map { |d| [d.day, d.strftime("%b")] },
+          commits: @commits.map(&:to_graph_hash)
+        }.to_json
       end
-
-      def commits_json
-        @commits_json = @commits.map(&:to_graph_hash).to_json
-      end
-
-      protected
+    
+    protected
 
       # Get commits from repository
       #