[treeview] (inprogress) minimally working state-remembering treeview

[tabs] augment a bit the lazyview interface (very general now), tab groups are now marked per entity (thinking about the ?vid=primary case)

[treeview] (in progress) use less magic, having something that now allows prepopulating a part of the tree

right boxes aligment to the right

cubicweb-core wasn't a virtual package

merge

prepare for deprecation

oops

fix DateTimePicker implementation, it should now work

select needs to accept an id

confirmation in password widget

FileField backport

should use StringField actuallly

add needs_css and needs_js on widgets

fix label generation in forms

The value as returned by FieldWidget._render_attrs() is now always a list

vocabulary methods are now defined on forms, not on entities

implement default vocabulary method on Field, provide a specific one on RelationField

field debug helper

rename propname into format_prop

fix HiddenRelationField bug

provide basic methods to build fields from schema constraints / cardinality

put form buttons in a separate table

select tag now accepts a multiple argument

test and fixes

oops

rich field / fckeditor handling

cleanup (until removal :)

make fckeditor actually optional, fix its config, avoid needs for a link to fckeditor.js

update imports