chocolatey/chocolatey — pull request #260 by rismoney (2013-03-27 20:24:34+00:00)
Title: chocolatey version all version for a specific package added

usage: .\chocolatey.ps1 version sysinternals -version all -lo

we might need to do a compare-object allinstalled current to get
a list of 'old' packages to not cleanup if using cup. Currently
cup doesnt do any cleanup and orphans packages in lib