[IMP] website_quote: reorder quotation lines

Cherry-picked from b720a596210f5502ae595ffa7ce09b4acd4b63f8
[IMP] im_chat: ESC shortcut to close chat window

Cherry-picked from 0172cfba76ae4509be33220f6d4ef09c005c8312
Closes #2335
[IMP] website_sale: clean categories

Cherry-picked from 61ed580876e88a34fbaab44863fe6f025cb94cda
Closes #134
Merge branch 'master' of https://github.com/odoo/odoo into master-linux64