appcelerator/titanium_mobile — pull request #4030 by mstepanov (2013-03-25 23:36:11+00:00)
Title: [TIMOB-11747] prevent document viewer garbage collection; also fix hide/dismissPreviewAnimated to run on UI thread

[TIMOB-11747](https://jira.appcelerator.org/browse/TIMOB-11747)

Test instructions in JIRA comments.