Added MakePSFplot method to make plots of PSF properties from SExtractor results.
Added MakePSFplot method to make plots of PSF properties from SExtractor results.

Also changed how SExtractor was called to be simpler and easier to adjust parameters.

Changed SExtractor output parameters to use windowed values where available.

Started work on DetermineZeroPoint method.

joshwalawender/IQMon,joshwalawender/IQMon