[IMP] website_sale: confirm quotation only when the payment is done, not directly when hitting 'pay now'.

+ replace widget selection by options no_open no_create

[FIX] website: restore compatibility with RC1 templates for commit 77c41cc5

This is related to the revert 333852e1

This reverts commit d4972ffd.

Seems to break some cases, at least in _product_reserve from stock/stock.py

Actual use case:

SELECT product_uom, sum(product_qty) AS product_qty FROM stock_move WHERE location_dest_id=%s AND location_id<>%s AND product_id=3645 AND state='done' GROUP BY product_uom;
returning 1 | 6

SELECT product_uom,-sum(product_qty) AS product_qty FROM stock_move WHERE location_id=%s AND location_dest_id<>%s AND product_id=%s AND state in ('done', 'assigned') GROUP BY product_uom;
returning 1 | -6

results += cr.dictfetchall()
    total = 0.0
    results2 = 0.0
    for r in results:
        amount = uom_obj._compute_qty(cr, uid, r['product_uom'], r['product_qty'], context.get('uom', False))
        results2 += amount
        total += amount
Total = 1, amount = -5

It should actually be
Total = 0, amount = -6

Avoiding some python float representation errors

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.

Especially as this user does not have a valid email, which
could prevent notifications to reach other followers.

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.

[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.

[FIX] im_chat, im_livechat : fix the loading history for anonymous user and remove useless search_user_status rpc call.

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

As in most cases, we do not want this doall

Using group without defining the col attribute will let the form
renderer choose the right display to avoid screwing up the layout

The method recompute_voucher_lines() is used by several onchange methods of
account.voucher.  It used to unlink() the voucher lines before recomputing new
voucher lines.  As a side effect, if you edit a voucher and discard your
changes, your voucher has lost its lines, although you did not save your
changes!  Moreover, the call to unlink() is invalidating the record cache,
which screws up completely the onchange() method.

So, instead of unlinking the existing lines, the onchange generates commands
[(2, id), ...] to remove the existing lines only when saving the changes.

The SHA OUT list was incomplete and therefore SHASIGN was not matching anymore
List of keys from https://viveum.v-psp.com/Ncol/Viveum_e-Com-BAS_EN.pdf

The context was removed by 1933e926.

Add line id to while calling _cart_update() from sale_get_order()
The missing line_id parametre was making the _cart_find_product_line() call to fail as it was linked to an option while searching for lines without options (making the method recreate new lines).
Fixes #2573

This quick fix avoids a buggy behaviour in version 8.0 that could
confuse users.

A future version should implement properly selection fields in t-field.

(closes #2490)

(cherry picked from commit fe3cac30e4c5c132da1de02576d4aa325979ccd9)

Replace the query "SELECT min(id) FROM xxx" by "SELECT 1 FROM xxx LIMIT 1".
Both requests are as efficient, and the second one does not crash if column
'id' is missing.