added uninstall script

[Hulmani]

works when virtualbox and vagrant are installed via brew cask

[Hulmani]

Bell-app need to be signed from an identified developer in order to launch without permissions from the user.

[DrewPerlman]

@Hulmani The uninstall.sh file looks fine, but I'm not entirely sure what the other 38 file changes are for.

Please undo those changes (I recommend using git branches) and submit a different pull request with those changes if you'd like.

[Hulmani]

It has Bell-app files also. Did you also consider that?

[DrewPerlman]

So are those "Bell-app" files the desktop shortcut for Macs?

If so, we'd like you to do a separate pull request with only those changes (this should help you with how to do that, using git rebase, git reset, git add and such), and make this PR only have the uninstall.sh change. Also, it would be great if you named the "Bell-app" commit to something more clear (like "add Mac desktop shortcut" for example).

[Hulmani]

@dogi Please check if this pull request looks good

[dogi]

awesome