New module: pkgutil (for Solaris)

Pkgutil is a package management utility for Solaris, which works with 3rd party repositories (like OpenCSW).
I wrote this module based on svr4pkg and added an installation option called "latest".

It is fully tested and working with the latest version 2.6.5 of pkgutil.

I hope you like it. For more information about pkgutil visit http://pkgutil.net/