UI changes:

* .page_title  class added. Used for better page headers
* improved help page
* added back links for help pages
* show app version & revision on help page

Backend changes:
* Gitab::Version && Gitlab::Revision constants

config/initializers/gitlab/10_app.rb

@@ -0,0 +1,4 @@
+module Gitlab
+  Version = File.read(Rails.root.join("VERSION"))
+  Revision = `git log --pretty=format:'%h' -n 1`
+end

config/initializers/gitlab/20_grit_ext.rb

@@ -0,0 +1,28 @@
+require 'grit'
+require 'pygments'
+
+Grit::Git.git_timeout = GIT_OPTS["git_timeout"]
+Grit::Git.git_max_size = GIT_OPTS["git_max_size"]
+
+Grit::Blob.class_eval do
+  include Linguist::BlobHelper
+
+  def data
+    @data ||= @repo.git.cat_file({:p => true}, id)
+    Gitlab::Encode.utf8 @data
+  end
+end
+
+Grit::Diff.class_eval do
+  def old_path
+    Gitlab::Encode.utf8 @a_path
+  end
+
+  def new_path
+    Gitlab::Encode.utf8 @b_path
+  end
+
+  def diff
+    Gitlab::Encode.utf8 @diff
+  end
+end

config/initializers/gitlab/30_resque_queues.rb

@@ -0,0 +1 @@
+Resque.watch_queue(PostReceive.instance_variable_get("@queue"))