Blender Velvets finally updated for Blender 2.74

The Blender Velvets are finally updated for Blender version 2.74. Velvet Revolver and Blue Velvet were also tested using FFmpeg and Ardour latest versions – 2.7.1 and 4.1.0, respectivelly.

This is just a compatibility update, because Blender has just released their 2.75 version, so I’ll update the Velvets right away for it.