cleanup

turn all the stuff used to handle 'generic relations' in forms into proper field / widget. -> regroup code from web.request, web.controller, web.views.autoform, web.views.formrenderers, web.views.editcontroller (!) into GenericRelationsField, GenericRelationsWidget in the editviews module (together with the UnrelatedDiv view). So: * almost everything in one place * no more specific behaviour in the form renderer * almost no custom behaviour in autoform (simply add the field when it think it should) Also, the form renderer now display field's value with colspan=2 when field.label is None.

fix tests

[rql2sql] added test that shows crash during sql generation Original query in cubicweb-drh: Any A,E,CV,group_concat(TN) GROUPBY A,E,CV WHERE A is Application, A for_person P, P has_studied_in E?, T? tags A, T name TN, A curriculum CV? Corresponding bug in tracker: #628798

apply patch proposed by 2web to properly remove hidden input set to represent the button used to submit the form, so forms may be properly reused after a post

fix dumb name error

missing import

remove input from jquery filter, so it works as well with buttons

unicode(arg) else we may get some encoding exception

remove deprecation warnings + name error