Update sextant gem to 0.2.4
Update rails gems to 4.0.0.rc2
Add brakeman gem
Add guard-brakeman gem
Add brakeman to Guardfile
Update Rakefile
Drop strong_parameters gem (functionality already in rails4 core)
Update devise config
Replace nested_set with awesome_nested_set
Update spec_helper.rb
Update environment.rb
Update wrap_parameters.rb
Update inflections.rb
Cleanup
Add bin/
Remove attr_accessible
Update development.rb
Fix search routing spec
Fix security routing spec
Update test env