more code cleanup
added ClipManager (work-in-progress)
continued clip manager implementation (work in progress)
ConfigManager implementation
completed functionality to play a series of clips in a sequence
removed config.json from source control
added .gitignore to repository
reverted back to 480p (from 720p)
added blur filter to smooth Kinect depth image
fixed for crash on PCs when switching clips (the first time they are displayed)
clips overlay now alternate between background and silhouette
started implementing silhouette/background simultaneous video support
continued implementing silhouette/background overlay support (work-in-progress)
fixed a few regressions
completed implementation of  simultaneous background and slihouette clips
minor refactoring
added missing file from last commit
started frame cache implementation (work-in-progress)
started cache integration
now using SilhouetteFrames instead of PImages for Kinect Silhouette