#163 Add DataCaching protocol which can be used to implement custom data caches. It's not documented yet, the documentation is going to be updated in 7.2.1.
Initial iOS 12.0, Swift 4.2 and Xcode 10 beta 1 support
#167 ImagePipeline now uses OperationQueue instead of DispatchQueue for decoding images. The queue now respects ImageRequest priority. If the task is cancelled the operation added to a queue is also cancelled. The queue can be configured via ImagePipeline.Configuration.
#167 ImagePipeline now updates processing operations' priority.
Fix a regression where in certain deduplication scenarios a wrong image would be saved in memory cache
Fix MP4 demo project
Improve test coverage, bring back DataCache (internal) tests