(#20726) Include password for useradd managehome tests on windows

The new acceptence tests for managing the home directory fails on
Windows because windows requires a sufficiently complex password to be
specified when creating the home directory.

With that said, managing the home directory is broken on windows with
ruby 1.9 (#20768). This marks the test as pending when not running ruby
1.8.

Paired-with: Josh Cooper <josh@puppetlabs.com>
(#20726) Use a new home directory that Solaris usermod will accept

On Solaris, executing `usermod -d dir username` where dir is the user's
home directory as reported by `puppet resource user username` will fail
with the error:

    UX: useradd: ERROR: Path must not start with '/home/'

It appears the new directory must be of the form
'/export/home/username'. Since this issue is unrelated to #20726, I'm
marking this test as pending on Solaris.