square/KIF — pull request #230 by percysnoodle (2013-07-30 10:49:44+00:00)
Title: Fix crash in accessibilityElementMatchingBlock

In some circumstances, instances of `_UIAccessibilityElementMockView` were present in the element stack and nowhere else. When they were popped from the stack, they were then dealloced before use. This adds retain and autorelease when they are popped to prevent this.