camelize (ActiveSupport::Inflector)

    # File lib/active_support/inflector.rb, line 178
        def camelize(lower_case_and_underscored_word, first_letter_in_uppercase = true)
          if first_letter_in_uppercase
            lower_case_and_underscored_word.to_s.gsub(/\/(.?)/) { "::#{$1.upcase}" }.gsub(/(?:^|_)(.)/) { $1.upcase }
          else
            lower_case_and_underscored_word.first.downcase + camelize(lower_case_and_underscored_word)[1..-1]
          end
        end