[MERGE] [ADD] web: form: added FieldCharDomain widget. This widget works on a char...

[MERGE] [ADD] web: form: added FieldCharDomain widget. This widget works on a char field and is used to manage a domain. It allows to select records in a list view and to store the domain in the field, without having to deal with the complexity of writing domains.

[ADD] web: form: added FieldBarChart widget. This widget works on char field and display a serialized list of values as a barchart. This is used in stat buttons, like percent pie or stat info, to display a summary of some data on form view.

[IMP] web: some fixes and improvements in the stat buttons.

[IMP] web: list view: buttons in list view can now be text button, not only icon-based buttons. Icons are so v6 and not swag.

bzr revid: tde@openerp.com-20140416114938-3qsv8b8dumw5x4pj