ExtUtils::Install: Update to 2.08

Optimisations:
  use our instead of vars
  lazy load modules
  make OS variables into constants
  move some calculations out of a loop

Keep our make -s support

Author: rurban

Porting/Maintainers.pl

@@ -643,7 +643,7 @@ package Maintainers;
     },
 
     'ExtUtils::Install' => {
-        'DISTRIBUTION' => 'BINGOS/ExtUtils-Install-2.04.tar.gz',
+        'DISTRIBUTION' => 'BINGOS/ExtUtils-Install-2.08.tar.gz',
         'FILES'        => q[cpan/ExtUtils-Install],
         'EXCLUDED'     => [
             qw( t/lib/Test/Builder.pm