moved NftPrefsNode property functions from node.c to node-prop.c
added nft_prefs_node_get_next_with_name()
added nft_prefs_node_prop_unset()
minor documentation change
don't save xmlDoc in xmlNode->_private, it's already in xmlNode->doc
added NULL ptr checks
minor documentation changes
fixed possible xmlDoc memory leaking when nft_prefs_node_free()ing the last node of a doc
move all static functions above private functions
close doxygen group
remove prefixes from private function to suit naming scheme
version bump - from here on, the API will break old apps
renamed nft_prefs_node_to_*_light() to nft_prefs_node_to_*_minimal()
minor stuff, added updater functionality (closes issue #2)
removed alloca() usage