Wrong beginning of Tau range

[rocomanmelli]

I think this line should have log10(1) which is equal to 0 instead of log10(delta):

kalibr_allan/matlab/SCRIPT_allan_matparallel.m

Line 41 in 9d38ea9

tau = delta*logspace(log10(delta),log10(taumax),2000);

That way, the range of Tau would go from delta to taumax, not from delta*delta to taumax.