Some reliability fixes and add check_param method that will test whether a given parameter was defined AND if the length is > 0
Some test reliability fixes (add non-greedy switch for some regular expressions) (test_max_walk, test_mode_exists, test_invalid_modes)
Add support for "-" being treated as a blank cell to accommodate remote CSVs
Make report support -D debug mode to toggle whether it outputs the long traceback-style information or the shorter version