add a rake task to update ember to current master

.gitignore

@@ -1,15 +1,4 @@
-# See http://help.github.com/ignore-files/ for more about ignoring files.
-#
-# If you find yourself ignoring temporary files generated by your text editor
-# or operating system, you probably want to add a global ignore instead:
-#   git config --global core.excludesfile ~/.gitignore_global
-
-# Ignore bundler config
 /.bundle
-
-# Ignore the default SQLite database.
 /db/*.sqlite3
-
-# Ignore all logfiles and tempfiles.
 /log/*.log
 /tmp

Rakefile

@@ -1 +1,15 @@
-#!/usr/bin/env rake
+$: << 'lib'
+
+namespace :ember do
+  desc 'update ember'
+  task :update do
+    if File.exists?('tmp/ember.js')
+      system 'cd tmp/ember.js; git fetch origin; git reset --hard origin/master'
+    else
+      system 'git clone https://github.com/emberjs/ember.js.git tmp/ember.js'
+    end
+
+    system 'cd tmp/ember.js; rake dist'
+    system 'cp tmp/ember.js/dist/ember.js assets/javascripts/vendor/ember.js'
+  end
+end