[ADD] website_forum: added new funtionality to post Articles and Discussions also on forum insted of only questions. On articles and discussions users kan post multiple reply on each post insted on only one reply per post and users will able to post reply on any other reply. in list posts will be default sorted by relevancy. show introduction message when people not logged in.
[ADD] website_forum: added demo data for article and discussion.
[IMP] improved code to use cookie instead of session to show introduction message and allow only 2 leval reply funtionality in discussion and article posts.
[IMP] better layout and options
[IMP] misc design elements
[IMP] misc layout improvements
[IMP] layout
Merge branch 'master' into master-forum-extension-tpa
[IMP] name is name (and not URL in case of links
[IMP] cleaning
[FIX] small bug
[FIX] sorting data
[FIX] forum
Merge branch 'master' of https://github.com/odoo/odoo into master-win32