Add facebook init to site

app/assets/javascripts/theme1/facebook.js.coffee.erb

@@ -0,0 +1,17 @@
+<%- if Rails.env.production? -%>
+window.fbAsyncInit = ->
+  FB.init
+    appId: '653729178057509'
+    xfbml: true
+    version: 'v2.1'
+
+((d, s, id) ->
+  js = undefined
+  fjs = d.getElementsByTagName(s)[0]
+  return if d.getElementById(id)
+  js = d.createElement(s)
+  js.id = id
+  js.src = '//connect.facebook.net/en_US/sdk.js'
+  fjs.parentNode.insertBefore js, fjs
+) document, 'script', 'facebook-jssdk'
+<%- end -%>