origamilabs/OGImage — pull request #29 by artgillespie (2013-08-22 21:17:40+00:00)
Title: Date based cache purge

Provides a new method on `OGImageCache` : `purgeDiskCacheWithDate:wait:`

This removes any cached files from disk whose access time is older than the provided date. Client apps can use this to implement LRU-based cache cleanup appropriate for their use cases.