Update Archive-Tar to CPAN version 1.96

  [DELTA]

1.96  24/10/2013
- integrate Package::Constants into Constant module
  and remove requirement on it.

1.94  24/10/2013
- install into site if >= 5.012

1.93_02 22/10/2013 (XLAT)
- [rt.cpan.org #78030] symlinks resolution on MSWin32
Schedule Package::Constants for removal from core
Update Package-Constants to CPAN version 0.04

  [DELTA]

0.04    Thu Oct 24 20:34:00 BST 2013
=================================================
* Update Makefile.PL to add repository et al
* Install into site if >= v5.12.0
* Add use deprecate due to core scheduled removal