* Correcting URL for github; ra-aid.git -> RA.Aid.git
* Additional fix to cloning instructions
* Initial draft of tweaks to add macOS compatibility
* Changing LS test to check for not-zero instead of specific error code
* Further macOS compatibility tweaks - dealing with mystery control characters
* Additional compatibility for macOS - flag as macOS, and detect and change command based it
* Removing unneeded variable