[FIX] website_forum: fixes
    [FIX] website_forum: escape the tags from post at texttext rendering
    [FIX] website_forum: jquery is not already loaded
    [FIX] website_forum: use uid from session because WebsiteForum object has no attribute '_uid'
[FIX] fix bouncing issue in form view (web client)

the buttons edit and create have been ungrouped recently.  As a
side effect (of course), the bouncing effect in form view is broken.
This should hopefully fix the issue without introducing any other
problems :/
[FIX] crm: fixed bug in m2m between sales teams and stages introduced
when cleaning the models. The m2m table name is different when defined
in sales_team or in stages, leading to a quie strange behavior.
[FIX] website_forum: fix broken forum activation email due to the migration to the new API.

Next step: write tests. Hooray.
[FIX] hr_holidays: fix virtual remaining leaves computation.

Now only validated allocation requests are taken into account
when computing the number of virtual remaining leaves (leaves
+ pending leaves). This avoid creating allocation request to
have virtual remaining leaves artificially added.
[IMP] mass_mailing: add creation date in fields
to display it on list view + perform search on it.
[IMP]crm,Sales_team: misc improvement
[FIX]sales_team: sparkline bar should be align to its relevant item, apply gruop base.group_no_one on 'code' field, used many2many_kanban widget to display team members in kanban box.
[FIX]Fixed the issue of Sales Team Kanban Stages have NO impact on the opportunities stages.
[ADD] added function field calls_count into crm.lead to count the number of calls, improve form view of lead and opportunity, added new subtype 'Opportunity created', and added help to message_bounce field.
[IMP]Remove create quotation button keep only 'convert to quotation' button, and fixed issue of comapign_id, medium_id, source_id not set in quotation when it create from Opportunity.