appcelerator/titanium_mobile — pull request #5798 by srahim (2014-06-13 19:42:18+00:00)
Title: [TIMOB-17136]3_3_X : iOS: HttpClient public setters should accept null

Backport #5791

__TESTING INSTRUCTION IN [JIRA](https://jira.appcelerator.org/browse/TIMOB-17136)__