RESTful resource(s): ensure members and collections will be respected. Closes #19

Example:

  Lotus::Router.new do
    resources 'books' do
      collection do
        get '/search'
      end
    end
  end

  Before this fix:

  GET /books/search # => it was hitting SHOW action and setting "show" as params[:id]

  After this fix:

  GET /books/search # => it hits SEARCH now :+1: