Swipe to Delete and the “More” button (like in Mail app on iOS 7)
[출처] https://github.com/MortimerGoro/MGSwipeTableCell
[참고] http://stackoverflow.com/questions/17254402/swipe-to-delete-and-the-more-button-like-in-mail-app-on-ios-7
[참고] https://twitter.com/marksands/status/481642991745265664