Fix swscale color space converting matrix
Support "dgi" file extension
Support "vpy" file extension
Support invoking LSMASHSource in avs demuxer
Variable progress precision, print encoded file size & estimated total size

This patch may cause progress indicator to exceed console width limit.
Try to increase width of console window to avoid the problem.
More detailed "zones" help
Unofficial --device
Correct framerate to proper NTSC fraction if applicable
Add "libaacplus"
Remove Blu-ray open GOP special casing. Instead alter other parameters to be Blu-ray compatible.
Use forced frame types and keyframes in slicetype analyse.