BoltsFramework/Bolts-iOS — pull request #14 by inamiy (2014-02-08 02:16:31+00:00)
Title: Add progressive-call feature.

I added progressive-call feature on BFTask, similar to jQuery's `deferred.progress`/`notify`.
I'm not sure whether I should reuse `-continueWithBlock:` for progress-ibility,
but I will send a sample code anyway.