[sane-devel] First version of the new test backend released

[Henning Meier-Geinitz]

Hi,

the first version (1.0.1) of the test backend is finished and can be
downloaded at http://www.meier-geinitz.de/sane/test-backend/ .

It's in a very early stage so don't expect too much. Scanning is
possible but not much more.

The idea is to supersede the pnm backend as a hardware-independent
test backend without the problems of the pnm backend.