Bernad Sisig riley-dog

## navbar_steps.rb
def navbar_visible?
  !query('navigationBar').empty?
end

def navbar_has_back_button?
  !query("navigationItemButtonView").empty?
end

def navbar_should_have_back_button
  unless navbar_has_back_button?
	def navbar_visible?
	!query('navigationBar').empty?
	end

	def navbar_has_back_button?
	!query("navigationItemButtonView").empty?
	end

	def navbar_should_have_back_button
	unless navbar_has_back_button?