rs/SDWebImage — pull request #297 by inamiy (2013-02-13 10:15:52+00:00)
Title: Add synchronous disk-cache loading method.

Hi, there are cases people just want to load images synchronously without using blocks,
so I added `-imageFromDiskCacheForKey:` method instead of using asynchronous `-queryDiskCacheForKey:done:`.

It'lll be glad if you can merge this commit to your master branch :)