rs/SDWebImage — pull request #103 by fannheyward (2012-04-25 02:02:07+00:00)
Title: Fix warning: "performSelector may cause a leak because its selector is unknown."

In ARC enabled project, I have got the warning: "performSelector may cause a leak because its selector is unknown." at `id activityIndicator = [NSClassFromString(@"SDNetworkActivityIndicator") performSelector:NSSelectorFromString(@"sharedActivityIndicator")];`.

Here is a fix. via http://stackoverflow.com/a/7933931/380774

Thank you for your work.