# File lib/rbot/config.rb, line 25
    def initialize(key, params)
      # Keys must be in the form 'module.name'.
      # They will be internally passed around as symbols,
      # but we accept them both in string and symbol form.
      unless key.to_s =~ /^.+\..+$/
        raise ArgumentError,"key must be of the form 'module.name'"
      end
      @order = @@order
      @@order += 1
      @key = key.intern
      if params.has_key? :default
        @default = params[:default]
      else
        @default = false
      end
      @desc = params[:desc]
      @type = params[:type] || String
      @on_change = params[:on_change]
      @validate = params[:validate]
      @wizard = params[:wizard]
      @requires_restart = params[:requires_restart]
    end