v4.2.2

• Add truncation capability to all types of output (file contents, compile output, test output)
• Add CONTRIBUTING.md
• Don't try to read contents of file in cat() if they are going to be hidden by output
• Catch PermissionErrors in run_static()
• Refactor formatters to be more readable and have more concise output
• Fix issue with labs not failing CI builds in all classes instead of only Software Design
• Add docs/REFEREE.md