security update for new relic gem
nokogiri update
fixes a bug reported by a user (changing password not possible because then old events were marked as invalid, thus the user was invalid and not saveable)
rails security upgrade # http://weblog.rubyonrails.org/2013/1/8/Rails-3-2-11-3-1-10-3-0-19-and-2-3-15-have-been-released/
Merge branch 'master' into develop

* master:
  rails security upgrade # http://weblog.rubyonrails.org/2013/1/8/Rails-3-2-11-3-1-10-3-0-19-and-2-3-15-have-been-released/
  fixes a bug reported by a user (changing password not possible because then old events were marked as invalid, thus the user was invalid and not saveable)
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