initial work for issue 399
autopep8
fixed syntax errors in force parser and fixed 2 other errors with args.force
fixed some formatting and combined 2 if statements into 1
Fixed typo
Fixed typos
Added force option to all scripts to script IO sanity checks and updated tests to match
pep8
Merge pull request #647 from jessicamizzi/fix/check-override

initial work for issue 399: add --force flag