Converted to ARC#43

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mattgemmell:masterfrom

pipelineoptika:master

Commits on Sep 8, 2011

Converted project to ARC (safe for iOS4 -- no "weak" keyword).
Dafydd Williams
committed
Update iOS deployment target to 4.0
pipelineoptika
committed
Fixed a bug whereby an assign should have been an unsafe_unretained.
pipelineoptika
committed

Commits on Sep 9, 2011

Updated README to note the main difference, while maintaining Matt's attribution.
Dafydd Williams
committed