def define(name, &blk)
      name = name.to_sym
      raise "SimpleCov Profile '#{name}' is already defined" unless self[name].nil?
      self[name] = blk
    end
def define(name, &blk)
      name = name.to_sym
      raise "SimpleCov Profile '#{name}' is already defined" unless self[name].nil?
      self[name] = blk
    end
Define a SimpleCov profile:
   SimpleCov.profiles.define 'rails' do
     # Same as SimpleCov.configure do .. here
   end