• User Guide: Add documentation on tracking and stabilizing.
• FrameBlend: Add Over operation, add decay parameter, and fix bugs.
• Fix Python Pseudo-random number generators random(min,max,time,seed) and randomInt(min,max,time,seed)
• Shadertoy: Document the process to adapt a shader from shadertoy.com to the Shadertoy plugin.
• Support FFmpeg 4.0 in the ReadFFmpeg and WriteFFmpeg plugins.