title: How to make action to close NSPopover?
body: <p>Hi I implemented an NSPopover in one of my apps, but the popover will not close. I'm guessing that it should close once I click something else, but its not. I know that there's a close popover action but that only works for a different button. How can I make it look to see that the popover is open and when it is open to close the popover when I press the same button?</p>