Version 1.24.1

• Bump cloudinary-core library version to 1.19.0
• Refactor max error count handling for upload requests.
• Update libraries and tools versions
• Add consumerProguardFiles to automatically generate proguard rules for consumers.
• Improve support for immediate time window in upload requests.

Version 1.21.0

• Fix Android O compatibility issues
• Implement cancellation for in-progress requests.
• Sample app improvements and fixes.
• Add signing to gradle build

Version 1.20.0

New functionality

• Add new MediaManager framework
  • Upload scheduler
  • Upload Policy
  • ListenerService and UploadCallback
    • onStart
    • onProgress
    • onSuccess
    • onError
    • onReschedule
• Move Cloudinary Android SDK back to cloudinary/cloudinary_android