Produits Entr'ouvert » Mandaye

toolbar: now using jquery to load the bar

backends: complete rewrite of the interface

The old interface was to specific for sqlalchemy this new one allow to
write new backends

WARNING: this commit could break compability for some filter which uses
the old interface

toolbar: manage offline toolbar

default filters: add a filter to fix url in reponse content

toolbar: add mandaye account in the toolbar

toolbar: add disassociate url

toolbar: show toolbar only when the user is connected

mandaye improved default filters to manage a toolbar

Refs #5048

initial import for branch 0.8

This is a complete rewrite of the configuration system

Fixes #4666

cleaning: removing vincennes from mandaye core