* If hardware support for feature level 11 isn't present, fall back to
the WARP software rasterizer. This will support everything needed, but
it certainly won't run well.
* There are loud warnings - I added a debug message to the debug errors&
warnings window so the status bar will indicate that, and it's in the
title.
* At most once every 3 weeks there will also be a message box pop up
when loading a log, to remind the user so that it isn't forgotten, as
for obvious reasons this is not the intended use-case (hopefully once
per 3 weeks isn't too often to be annoying).
baldurk
6208e3992d