OneBusAway/onebusaway-iphone — pull request #296 by beliyd (2014-04-25 00:54:24+00:00)
Title: Fixes #295

Updated OBASelectorJsonDigesterRuleTarget enum to use modern syntax
Updated the OBASelectorJsonDigesterRule.h to return instancetype & added a note explaining target memory paradigm

Simplified the implementation of OBASelectorJsonDigesterRule & replaced ivars with properties.

An ivar (**target** in this case) by default maintains a strong reference, this was causing a retain cycle.