[doc] update CHANGELOG
[mod] make code a bit more lisible
[mod] update TODO
[mod] syntaxe for todo
[mod] update TODO
[mod] refactor, extract attribue to query matching from _node_match_query
[enh] can use same queries techniques on identifier than on other attributes in find/find_all
[mod] update TODO
[doc] inform about using the same queries properties on an identifier than on an attribute
[enh] can pass a list as a shorthand for testing 'in' in find/find_all
[doc] document the list/tuple in find/find_all
[mod] update TODO