Release of libxml2-2.8.0

- Makefile.am: don't package .git
- configure.in : update to new release
- doc/xml.html: added the new release
- doc/* testapi.c: regenerated

python/setup.py

@@ -226,7 +226,7 @@ else:
 setup (name = "libxml2-python",
        # On *nix, the version number is created from setup.py.in
        # On windows, it is set by configure.js
-       version = "2.7.8",
+       version = "2.8.0",
        description = descr,
        author = "Daniel Veillard",
        author_email = "veillard@redhat.com",