Log Message:
Update p5-Package-Stash to 0.33.

Changes from previous:
0.33  2011-09-28
      - add conflict on MooseX::Method::Signatures 0.36 (ether)

0.32  2011-09-05
      - bring the behavior of has_symbol for nonexistant scalars into line with
        the xs version
      - invalid package names (for instance, Foo:Bar) are not allowed
      - invalid stash entry names (anything containing ::) are not allowed