Updated brakeman gem from 2.4.3 to 2.5.0
Updated aws-sdk gem from 1.38.0 to 1.40.0
Updated rails from 4.1.0 to 4.1.1 and activeadmin to github commit cf3b1f70ab0eafc90e8ba4e9f7afdf0a8d094efb.

Rails update fixes vulnerability CVE-2014-0130:

http://weblog.rubyonrails.org/2014/5/6/Rails_3_2_18_4_0_5_and_4_1_1_have_been_released/
https://groups.google.com/d/msg/rubyonrails-security/NkKc7vTW70o/NxW_PDBSG3AJ
Updated capistrano from 3.1.0 to 3.2.1