Updates how FWHM is calculated, exposes find_width
Adds new script to aid in alignment
Updates documentation and output of analyse_psf.py
Adds logy, ylim, vgrid, hgrid, xlabel and ylabel options to plot.oy
Makes CSVReader accept SIOS generated data files
Adds .gitignore
Adds utils.py
Adds plotfiletools.py
Adds edit_plotfiles.py