Matthew Seiler aa6e103e42
Conditionally invalidate displayLink
Don't invalidate the CADisplayLink on deinit unless the  lazy display
link instance was already initialized previously.

- Closes #53
- Closes #54
2016-04-11 00:32:25 +02:00
..
2015-10-22 19:14:35 +02:00
2016-03-31 00:16:29 +02:00
2015-10-22 19:14:35 +02:00
2014-12-08 23:16:41 +01:00
2016-03-31 00:16:29 +02:00
2016-03-31 00:16:29 +02:00
2015-10-22 19:14:35 +02:00