update simple_form v3.0.0...v3.0.2

https://github.com/plataformatec/simple_form/compare/v3.0.0...v3.0.2

leave fork stephenprater back to plataformatec
update rails 4.0.2 => 4.1.5

http://edgeguides.rubyonrails.org/upgrading_ruby_on_rails.html#upgrading
-from-rails-4-0-to-rails-4-1
http://brewhouse.io/blog/2013/12/17/whats-new-in-rails-4-1.html?brewPubS
tart=1
http://edgeguides.rubyonrails.org/4_1_release_notes.html
update simple form wrappers
update teaspoon configuration
FIX confirmable bad token
some problem with devise and cookie serialization with Rails JSON encoder
Merge pull request #3 from joel/working

Working