ruby-shadow: new upstream version (fix FTBFS with ruby2.0 #720229)

[David Suárez <david.sephirot@gmail.com>]

Hi,

I have updated ruby-shadow to a new upstream version.

Some comments:
  - Fix some tests failing because import errors (fix FTBFS #720229).
  * Refresh fix_license patch
  * Bump standards version to 3.9.4; no changes needed
  * Remove libshadow-ruby1.8 transitional package

It builds fine on a sid chroot.

Can anyone review and upload it.

Thanks,
  David