update note

[shell, testlib] return doc test results in process_script and new assertDocTestFile method on CubicWebTC

[migration] fix rqliter when some query arguments are given

[uilib] soup2xhtml uses now lxml.html.Cleaner The lxm cleaner class let you configure more easily the allowed tag elements in parsed content. Caveats: - attributes in elements are not dropped (and html layout can be broken if css classes are reused) - root tag element in snippet is buggy