Update of texinfo-4.13 with lzip support

[Antonio Diaz Diaz]

Dear maintainers,

Could it be possible to release an update of texinfo-4.13 with lzip support?

I'm beginning to make my projects optionally install lzip-compressed 
docs (info manuals and man pages) and have noticed that a significant 
fraction of users are still using version 4.13. (I myself use a patched 
4.13).

The change would be about as small and trivial as the one adding lzip 
support to texinfo-5.0:
http://lists.gnu.org/archive/html/bug-texinfo/2013-02/msg00073.html

As I suppose that texinfo-4.13 is unsupported, and to make things easy, 
instead of a patch I can provide the updated tarball(s) ready to upload. 
(Named texinfo-4.13b.tar.gz or whatever other name you find apropriate).


Thanks and regards,
Antonio.