1.0.9

• Support Carthage (Quanlong He @cybertk, Alexander Grebenyuk @kean)
• Add loop completion block (Kevin Delannoy @delannoyk)
• Improve resilience against GIFs with corrupted frames (Tim Johnsen @timonus)
• Disable image source decoded image caching (Aditya KD @caughtinflux)
• Update sample project to support iOS 9 TLS (Alexander Grebenyuk @kean)
• Update sample project to cache remote GIFs (Tim Johnsen @timonus)
• Turn on -Wundef warning flag (Tim Johnsen @timonus)