Create a cask for Avast Mac Security. Not entirely sure if the
uninstall stanza is correct. The dmg comes with an uninstaller
with the filename 'com.avast.uninstall.app', but I can't find
anything in the docs about using a pre-packaged uninstaller.
Remove broken uninstall stanza
Add uninstall stanza suggested by @rolandwalker
This stanza seems to work. Application and support files all removed
after uninstall.
Vítor Galvão