Redmine

Hi all. I am new to redmine & currently exploring all of its features. I want to add Google Analytics code to redmine. I searched in google & couldn't find anything useful. I found this article : http://dracoblue.net/dev/add-google-analytics-tracking-to-redmine/136/ where author mentioned to add the code to just base.rhtml. Since in newer versions, this file is base.html.erb, I tried adding code in it just before </head> tag. but that does not seem to work.

Any help regarding this is appreciated. Thank you !