Merge pull request #3945 from nicolas-brousse/homebrew-plugin

Create new aliases for homebrew plugin

plugins/brew/brew.plugin.zsh

 alias brews='brew list -1'
-alias bubu="brew update && brew upgrade && brew cleanup"
+alias bubo='brew update && brew outdated'
+alias bubc='brew upgrade && brew cleanup'
+alias bubu='bubo && bubc'