bind plugin: add support for the new XML v3 API.

Unfortunately, this new API does not provide per-zone data
any more, thus 'Zone' options like

     Zone "example.com/IN"

are ignored if API version is 3.
bind plugin: split bind_xml_stats to v3 and v1_v2.

And minor change to bind_parse_generic_name_attr_value_list.
Merge branch 'master' into debian
updating build.sh results
Merge branch "debian" into debian-wheezy-backports