Fix exit codes on fix command & BSD compatibility#22

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jackbentley wants to merge 5 commits intocytopia:masterfrom

jackbentley:master

Commits on Jul 1, 2020

Fix fixer scripts to work with both BSD and GNU sed
Jack Bentley
committed
Fix permissions for grep fixer
Jack Bentley
committed
Add bin files to composer.json
Jack Bentley
committed

Commits on Jul 10, 2020

Fix incorrect exit code for fix commands
Jack Bentley
committed
Fix fix command issue with multi threads
Jack Bentley
committed