better 02_perlcritic.t.
Checking in changes prior to tagging of version 0.

Changelog diff is:

diff --git a/Changes b/Changes
index dde1ff5..c43b686 100644
--- a/Changes
+++ b/Changes
@@ -2,6 +2,11 @@ Revision history for Perl extension App::perlbuild

 {{$NEXT}}

+0 2013-05-28T14:32:39Z
+
+    - Added `--definitions` option. This option is same as ruby-build.
+      (tokuhirom)
+
 0.20 2013-05-17T00:46:48Z

     - use 'test_harness' for parallel testing.