Transitive-property support. - Fixed some of the pet-peeves from pep8 - Better parameter names for new _subselect method - use new-style class for support.Proptree but needed a new-style class for the property I introduced anyway. - Fix a bug where searching did the wrong thing (interestingly enough the same wrong thing for all backends): A search for {'messages': ['1'], 'messages.author': ['2']} would ignore the 'messages' part (messages being non-leaf node in proptree). Fixed and added a regression test for this. - Added the transitive searching to the SearchAction. New method get_transitive_prop introduced in hyperdb that does the transitive version of getprops()[name]. Fixed two tests to use the (faked) method instead of getprop. Now searching for transitive props via the web-interface works for me. Thanks to alexander smishlajev for pointing me at the coding style. Sorry for stepping on the peeves -- I'm using a different coding style in most other projects I'm doing ...