source/matlab/: 1) fofb_fa_plot_bpm_ps: corrected for plotting selection of variables; graphs reference is now mean of first 100 points, instead of mean of all points; 2) fofb_plot_spectrum and fofb_psd: Power Spectral Density is now in (power)/Hz units, instead of (rms)/sqrt(Hz) as before.
Merge branch 'dev-daniel' of github.com:danielot/FOFB into dev-daniel