Merged use-lmo.

This commit renames our fork of Mo to Lmo, since the two have diverged
a huge deal. The merged branch streamlined Lmo a great deal as well,
for maintainability.

t/lib/Lmo/unimport.t.moved

@@ -0,0 +1,28 @@
+#!/usr/bin/perl
+
+BEGIN {
+   die "The PERCONA_TOOLKIT_BRANCH environment variable is not set.\n"
+      unless $ENV{PERCONA_TOOLKIT_BRANCH} && -d $ENV{PERCONA_TOOLKIT_BRANCH};
+   unshift @INC, "$ENV{PERCONA_TOOLKIT_BRANCH}/lib";
+};
+
+use strict;
+use warnings FATAL => 'all';
+use English qw(-no_match_vars);
+use Test::More;
+
+{
+   package One; use Lmo;
+   has one => (is => 'ro', default => sub { 'one' });
+   no Lmo;
+}
+
+my $unimported = One->new();
+is
+   $unimported->one(),
+   'one',
+   "after unimporting, ->one still works";
+
+ok !$unimported->can($_), "after unimpoirt, can't $_" for qw(has with extends);
+
+done_testing;