Merge pull request #423 from sharelatex/ja-set-google-analytics-cookie-domain

Set ga cookie domain to same as site

services/web/app/views/layout.pug

@@ -48,7 +48,7 @@ html(itemscope, itemtype='http://schema.org/Product')
 				(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
 				m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
 				})(window,document,'script','//www.google-analytics.com/analytics.js','ga');
-				ga('create', '#{gaToken}', 'sharelatex.com');
+				ga('create', '#{gaToken}', '#{settings.cookieDomain.replace(/^\./, "")}');
 				ga('send', 'pageview');
 		- else
 			script(type='text/javascript').