[FIX] account_voucher: use resolve_2many_commands() instead of buggy-hand-written function
[FIX] website_sale: free carts were not confirmed
[FIX] Error when installing module document
[FIX] payment: transaction formview display issue

Using group without defining the col attribute will let the form
renderer choose the right display to avoid screwing up the layout
[FIX] res_users: do not copy login_date when duplicating users
Modify General Ledger report to be printed on landscape if set in wizard.
[FIX] cron: doall false by default

As in most cases, we do not want this doall
[FIX] fix context problem in graph view

The group_by query expects the context to have group_by_no_leaf = true,
so we can not just blindly forward the context to the groupby query.
This is a defensive way to fix the problem, to avoid other possible
crashes.  But the context shouldn't have group_by_no_leaf anyway,
it does not make sense to explicitely do that in the action
[FIX] im_chat, im_livechat : fix the loading history for anonymous user and remove useless search_user_status rpc call.
[ADD] im_odoo_support : add the module for the live odoo support from all instances. This sets the bus and im_chat module auto installable.
[MERGE] forward port of branch 7.0 up to af37b30
[MERGE] forward port of branch saas-3 up to fe8106f
[FIX] base: correct non-copy of `login_date` + adapt tests
[FIX] im_odoo_support : fix event triggered to bind event on dropdown usermenu item.
[FIX] website_sale: auto-confirm free orders upon cart validation

Orders are normally confirmed when the payment transaction
is processed, but there is no transaction for free orders.
This caused them to stay in draft until manually cancelled.
[FIX] project_mrp: task description duplicated + product name translation
[MERGE] forward port of branch 7.0 up to cac6a26
[FIX] website_sale: avoid subscribing the website user (Public) to all shop orders

Especially as this user does not have a valid email, which
could prevent notifications to reach other followers.
[FIX] website: 'Display Editor Bar on Website' group stopped working at commit a2ef044c477

The Edit button never appeared anymore for these users.
The idea was that they should see an edit button with
limited editing capabilities depending on their other
access rights.
For example, someone with only Sales Manager access and
'Display Editor Bar on Website'
would be able to edit online quotes from the website_quote
module, but not change the actual website pages or menus,
for instance.
[IMP] account: use float_compare for taxes

Avoiding some python float representation errors