Log Message:
Update 0.007 to 0.009
---------------------
version 0.009; 2015-03-20

  * in test of require for version checking, work around [perl #124135]
    which was introduced in Perl 5.21.4

version 0.008; 2015-03-20

  * bugfix: don't localise hints around a version-number require, so that
    "use v5.10.0" can have its intentional effect of setting feature flags

  * bugfix: in pure Perl implementation, use a ($) prototype on
    CORE::GLOBAL::require, so that the argument expression will be in
    the correct context

  * better error message for refusing to use pure Perl implementation
    on Perl 5.9.4 to 5.10.0

  * document that the pure Perl implementation breaks the use of the
    implicit $_ parameter with require

  * in swash test, don't fail if utf8.pm was loaded unexpectedly early,
    as has been seen to happen on some systems

  * test idempotence

  * fix test for thread safety, which risked false negatives

  * when preemptively loading Carp and Carp::Heavy, avoid the Perl core
    bug regarding the context applied to file scope of required modules,
    in case of future versions of those modules becoming vulnerable and
    running on an old Perl

  * declare correct version for Test::More dependency

  * typo fix in documentation

  * typo fix in a comment