Changes:
- Document missing 'path' option and remove redundant brew_path manipulation
- Add 'update_homebrew' option since 'brew cask update' as a synonym for
'brew update' is available nowadays
- Add additional missing aliases documentation
- Port additional improvements (expanded support for brews path, cask path
patterns etc.)
- Allow proper `list` type support for 'name' option.
The documentation for the `state` field is not very clear.
It says possible values are "installed, uninstalled" and default value is "present"
The examples below alow uses `present` and `absent`.
This patch uses "absent" and "present" instead of "installed" and "uninstalled"
Moreover, this is consistent with other packaging modules, like homebrew itself
