def all_by_mvc(mvc)
      ret = []
      @security_checks.each do |sc|
        ret << sc if sc.applies_to?(mvc)
      end
      ret
    end
def all_by_mvc(mvc)
      ret = []
      @security_checks.each do |sc|
        ret << sc if sc.applies_to?(mvc)
      end
      ret
    end
TODO - next big refactoring will include also a change in this API.

 So to match Semantic Version, it must bring to a major version bump.
 MVC name should be passed as constructor option, so the all_by_mvc can

 be called without parameter, having a nice-to-read code.
 @checks = Dawn::KnowledgeBase.new({:enabled_checks=>@enabled_checks}).all_by_mvc(@name)