Resolves the following warning when using Homebrew 2.5.0:
Warning: Calling brew cask list is deprecated! Use brew list
Removed conditional checks for the Skitch, Witch, and OpenEmu
applications since they are no longer supported.
- Improves loading of the correct Bash environment/version, especially
on systems that might not be using a standard install (i.e.
Homebrew), by loading a version of Bash as defined by the environment
rather than a hard coded path.
[ci skip]
- This is a copy of the [OSX](https://github.com/bkuhlmann/osx) project
originally released on 2012-03-31. The OSX project has been
deprecated. All future development and support will take place with
this project instead.
- This project uses the *macOS* name in order to better match the
updated branding and terminology used by Apple.
