Generate a Brew cask Formula

[marcus-crane]

If users could cask install new updates instead of downloading them from Github, this would streamline the distribution process.

[marcus-crane]

As reference: https://github.com/Homebrew/homebrew-cask/blob/master/Casks/discord.rb

This also allows us to simplify the cleanup process going forward.

[marcus-crane]

Not that it's a good metric but this repo probably has enough stars by now to qualify for a cask: https://docs.brew.sh/Acceptable-Casks#rejected-casks

[marcus-crane]

Submitted a cask definition for consideration: https://github.com/Homebrew/homebrew-cask/pull/161585

[marcus-crane]

October is now available via Homebrew: brew install --cask october.

You'll need to run brew update the first time to pull in the cask definition