[IMP] ir_qweb, ir_ui_view: can use id insead of xml_id; can render ir.ui.view many2one with widget='qweb' in template
[IMP] ir_qweb: first tag 't' template of a view is added to qwebcontext.templates with id of ir_ui_view
[MERGE] from trunk
[MERGE] qweb-m2o-view - Allow to use many2one for qweb template (work also with view_id)