[FIX] website_customer: check that country id exists before access the name, else traceback when we come from a non existing id via the url/controller
[FIX] account: on_change_unit_amount do not reset uom to default
[MERGE] forward port of branch 7.0 up to cd31cbf556cc11950ce6188041cf5c2fcd89e0f8
[FIX] account: unit arg of on_change_unit_amount can be False
[MERGE] forward port of branch 7.0 up to 7c5bf67a5f9378fe4ae01eeffff24889f7bdcdc5
[FIX] crm: base_partner_merge, search with lowercase for name,email

and without spaces for vat
[FIX] mail: message-id not parsed properly in message_route

Same as for rev 4bad513, the references were not correctly parsed, added missing regex
[FIX] account: avoid to propagate context in send by email button

There is no reason to propagate the context in those buttons.

Besides, it leads to issues concerning the email template, rendering the wrong res_id because the active_id was wrongly propagated
[FIX] mass_mailing: allow to add a user/email to a specific mailing list and not always the last as previously.
[FIX] web: remove unneeded overflow-y on modal-body class

Will fix problem where opened dropdown list were hidden behind the modal footer
[FIX] orm.search_count: ignore `limit`, `offset` and most importantly `order`

These parameters are (or should be) irrelevant for
a search_count(), and they could actually break the
result or make it significantly slower (e.g applying
`order` on large tables).
This fixes a performance regression introduced by
0f43032b.

We could also raise an error offset/limit are
passed in combination with count, but that seems
unnecessary.

Also switched to "SELECT count(1)" for the count
query, as it is simpler and just as fast.
We'd get the same perf with * or any constant value,
as in "SELECT count('me in')", but let's keep it
simple ;-)
[MERGE] Forward-port saas-3 up to e79a367
[MERGE] Forward-port saas-4 up to 8b15482