sharedProfileImageRequestOperationQueue is declared in interface extension, but only implemented on Mac OS X. This causes an incomplete implementation warning. Added same #if around interface as surrounds impelmentation.
This only affects sample code.
`informativeTextWithFormat` interprets its string as a format. `[error localizedDescription]` could contain string formatting specifiers.
Fixes to use @"%@", [error localizedDescription] instead.
Spotted via compiler warning.
Renaming iOS example project
Adding AFNetworking to Mac project using preprocessor macros to resolve UIKit dependencies, and setting compiler flags accordingly.