Integrate changes #8738,8739,8740 from maintperl.

Integrate changes #8738,8739,8740 from maintperl.

Html files will be installed in a more logical and easier to
find directory. E.g. c:\perl\html instead of c:\perl\lib\pod\html

Html files will be generated with a header to make them look
a little less bare.

Subject: [PATCH perl-current] perlfaq3.pod, URL for vile

p4raw-link: @8740 on //depot/maint-5.6/perl: 01ae74d95ca12ccb961a994014b2e5e455604c83
p4raw-link: @8739 on //depot/maint-5.6/perl: 38f8eb688a5555e387bd9b926e4f0ae9b4016c57
p4raw-link: @8738 on //depot/maint-5.6/perl: 5c7c21200212f683312f32fb0820ee00445bda8f

p4raw-id: //depot/perl@8741
p4raw-integrated: from //depot/maint-5.6/perl@8737 'copy in'
	pod/perlfaq3.pod (@8546..) 'merge in' installhtml (@7895..)
	win32/Makefile win32/makefile.mk (@8732..)