missing self, using bool is simpler

we have now actual classes in rwidgets

cleanup

oops

new FormViewMixIn class, cleanup FormMixIn (to remove once cubes doesn't use it anymore)

oops

introduce init_registration method and call it in repo initialization

should set None as default here as well

fix primary edition of eproperty (weird js pb remaining though)

put class, not class name into rwidgets. New rfields rtags to specify a field for a relation

allow no values argument

move ajax.js to base form class

fix vobjects registration to deal with objects inter-dependancy

eproperty forms handling

override form_build_context instead of form_render so we get sure to call form_add_entity_hiddens even on subforms