2013-05-20 modified src/Mike/sitar.sl. Fixed type error in the computation of...

2013-05-20 modified src/Mike/sitar.sl. Fixed type error in the computation of the temporal frequencies in sitar_avg_cpd and
sitar_avg_psd: freq = [1:alen] / ( len*tbin); => freq = [1:alen] * (1.0/ (len*tbin));
Committer: Annika Kreikenbohm <akreikenbohm@astro.uni-wuerzburg.de>