Install Amphetamine by default on OSX

[ChrisCarini]

Looks like this can only be done through the app store:

brew install mas

# Amphetamine
mas install 937984704

(Note: The mas command requires being logged into the App Store

(Source: https://github.com/alexramirez/mac-setup )

[ChrisCarini]

See:

• https://github.com/mas-cli/mas/issues/164
• https://github.com/tiiiecherle/osx_install_config/blob/master/03_homebrew_casks_and_mas/3b_homebrew_casks_and_mas_install/6_mas_appstore.sh