Add 4.0.11.1 & 4.1.7.1 patched version for CVE-2014-7829

As per blog post the 4.0.11.1 and 4.1.7.1 have patched CVE-2014-7829 explicitly:

http://weblog.rubyonrails.org/2014/11/19/Rails-4-0-11-1-and-4-1-7-1-have-been-released/