Partially review matfaust.Faust with doctest (to continue).

matfaust.Faust.cat ..................................... PASS   16/16
matfaust.Faust.class ................................... PASS    3/3
matfaust.Faust.clone ................................... PASS    3/3
matfaust.Faust.complex ................................. PASS    2/2
matfaust.Faust.conj .................................... PASS    3/3
matfaust.Faust.ctranspose .............................. PASS    5/5
matfaust.Faust.delete .................................. PASS    8/8
matfaust.Faust.density ................................. PASS    2/2
matfaust.Faust.device .................................. PASS    2/2
matfaust.Faust.disp .................................... PASS    3/3
matfaust.Faust.double .................................. PASS    2/2
matfaust.Faust.end ..................................... PASS    6/6
matfaust.Faust.factors ................................. PASS    4/4