Fix Xcode settings for Xcode 4
Fix Xcode settings for Xcode 4

alloy/libPusher,hamchapman/libPusher,hamchapman/libPusher,alloy/libPusher,hamchapman/libPusher,alignd/libPusher,andreaperizzato/libPusher,alloy/libPusher,andreaperizzato/libPusher,andreaperizzato/libPusher,LoyoChengdu/libPusher,LoyoChengdu/libPusher,lukeredpath/libPusher,lukeredpath/libPusher,andreaperizzato/libPusher,hamchapman/libPusher,LoyoChengdu/libPusher,lukeredpath/libPusher,alignd/libPusher,alignd/libPusher,LoyoChengdu/libPusher,lukeredpath/libPusher,alignd/libPusher,alloy/libPusher