[MERGE] OpenChatter 5.Pi "Stylin' in the rain", with a better Chatter widget, CSS...

This web-side revision brings a new web widget for attachments, in order to upload one or more file in same time and display them as a list. Files deletion is supported. The blockui option allows to block the UI while the file is uploaded.

bzr revid: tde@openerp.com-20121029144755-7xibc7a3ndmby898

diff --cc addons/web/static/src/js/view_form.js
Simple merge