OpenCV and digiKam SlackBuilds updates

I have pushed two updates today on my SlackHacks repository and they are digiKam and OpenCV. Both were released yesterday and since i didn't have a proper Internet connection while at short vacation, i decided to postpone updating my SlackHacks until today.

OpenCV 2.4.2 has several interesting changes:

• New service-based distribution model for Android package
• New keypoint descriptor FREAK 
• Improved face recognizer
• OpenCV2 Framework for iOS
• Some update on CUDA and GPU Module

Meanwhile, for digiKam, the developer hasn't updated their website, but the source file for digiKam 2.7.0 has been uploaded to SourceForge.