This patch allows Windows users to specify that their current blender
installation should be used to create thumbnails and be associated
with ".blend" files. This is done from Preferences / System. The only
way to do this currently is from the command-line and this is sometimes
inconvenient.
Differential Revision: https://developer.blender.org/D10887
Reviewed by Brecht Van Lommel
bcff0ef9ca