Got working widget
stabilized api
[IMP] added registry for kanban view's fields
[IMP] added widget options for kanban fields
Launchpad automatic translations update.
[IMP] allow definition of web controllers that match all sub-urls
[FIX] http.py

Impossible to load the website when there is a unicode char in the url path.

`openerp.modules.module.ad_paths` containing unicode strings, werkzeug fail to compare the path which is converted to ascii.
force `openerp.modules.module.ad_paths` to only contain bytestrings
[MERGE] force module paths to be bytestrings

The http controllers handler crashes when there are non-ascii chars in the url path.

`openerp.modules.module.ad_paths` containing unicode strings, werkzeug fail to compare the path `module` which is converted to ascii.
force `module` to be bytestrings