Updated fel_randomimage viewer to perform on-the-fly background subtraction and peak finding.  Use this to tune peak finding parameters rather than running code over and over again!
Updated fel_randomimage peakfinder to include signal:noise criterion and other labels from the Cheetah hitfinder
Small changes to peak finding in fel_randomimage.pro
Fixing the 'one peak problem' in hitfinder 6
Changes to build file and psana.cfg
Turn off CXIDB files (for now)
This is why the saveCXIDB field in cheetah.ini did not work
Fixed build-all script according to Marc's description of how psana should be updated
Updated image refresh in fel_randomimage
Change file extension to cxi. cxidb is the name of the database and cxi the name of the file format.
Added new files for hitfinder, peakfinder