Auth manager delegate, custom delegate methods and actions
Merge remote-tracking branch 'upstream/unstable' into unstable
Merge pull request #452 from bhariharan/unstable

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Merge pull request #451 from khawkins/unstable

SFAuthenticationManager gets a delegate, custom actions
Making auth error handling customizable
Adding SFAuthErrorHandlerList to the public headers
Merge pull request #453 from khawkins/unstable

Making auth error handling configurable
Latest shared commit