close popover when clicking outside of it
Merge pull request #34 from andyxlee/master

close popover when clicking outside of it
Revert "Merge pull request #34 from andyxlee/master"

This reverts commit 86266d0f6e84673254e64f7b9714be4be73ebe02, reversing
changes made to da0aa29e5df1deb5e82c3f22aa54cf347fbc289d.
Add popup delay option