Log Message:
Update to 0.54:

0.54    2014-09-22 17:30 UTC
        + Add : The new constant VMG_COMPAT_CODE_COPY_CLONE evaluates to true
                if your perl calls 'copy' magic when a magical code prototype
                is cloned, which is currently the case for perl 5.17.0 and
                above.
        + Fix : [RT #90205] : copy magic on subs puts raw CV in $_[3]
                $_[3] will now contain a reference to the cloned code when
                'copy' magic is called for a coderef.
                Thanks Lukas Mai for reporting.
        + Fix : t/35-stash.t has been taught about perl 5.21.4.
        + Fix : Tests using run_perl() in t/17-ctl.t will no longer fail on
                Android.