[FIX] l10n_ro: backport of fix done in res_partner.py from aa76885

PR #720
[FIX] mrp_repair: invoice the actual invoice partner id
[FIX] tools: restrict available attributes
[FIX] web: backport of ebb826a and 2372d30

Fixing breadcrumb not being displayed after some action button (e.g. validate invoice, opw 612763)
[FIX] orm: do not drop foreign keys of transient models

During the update of a module, the existing foreign keys are dropped if they have a different ondelete_rule than the one specified on the field.
The foreign keys for many2one transiant -> non-transiant are created with cascade rule by default (see `m2o_add_foreign_key_checked` method) so the check needs to be realised in the same conditions.
[FIX] sale: backport of rev 709e22c32aca

[FIX] sale: sale report view, wrong domain

Quotations are sale.order with state draft and sent
Sale orders are sale.order with state other than draft, sent and cancel
[FIX] point_of_sale: set journal as pos payment method on setting journal in the payment methods of a pos config when none is set.
[FIX] auth_ldap: avoid to try twice the authentication to the ldap server

See #1982
[FIX] orm write: do not try to store computed & stored fields for relational records deleted by *2many fields

opw-613772
[FIX] loading: always process auto-installed modules for new databases

If the server was started without -i or -u and
happened to initialize a fresh database,
auto-installed modules that depend
on `base` only would stay in status "to install"
without actually being installed (until the next
installation round was triggered).
This was of little consequence in 7.0, but causes
a crash in 8.0.

Fixes #953
[FIX] account_anglo_saxon: correctly set the accounts for returns

The generated moves on a return should be the reverse of the outgoing move.
Fixes #1817, opw 604417
[FIX] stock/purchase: dates and currency rates

Use the currency rate of the purchase date instead of the one of at the reception time (opw 610430)
[FIX] hr_timesheet_sheet: avoid error when sort attendances

When an attendance line is edited, the tuple has no key 'name' which lead to a traceback.
Fixes #546
[FIX] kanban: wrong condition to reset the dataset index

The dataset index should be reset either if the dataset is empty or the index is greater than the records size
[FIX] event: translate templates into user language

When sending an email of the registration/confirmation, the context was lost and the tempate sticked in en_US.
With the patch, the template will use the current user's language.
[IMP] stock: display translated selection value in message

When a user tried to delete a done or canceled picking, the error messages used to display the key of the selection field ('done' or 'cancel') which was surprising in other languages than English. This patch takes the string value of the selection field, keeping the context to get the translated value (opw 613068)
[FIX] purchase: keep fallback behaviour that was removed at rev 8973217

If no valid invocie is found on the purchase order line, use the price and currency of the line (coherent with help message)
[FIX] account_voucher: convertion rate of purchase receipt

The conversion of currencies in vouchers are made based on payment_rate_currency_id field (instead of usual currency_id).
This field was not present in the purchase view and not correctly set when we change the journal (and thus the currency) which was leading to rates of 1. With a rate of 1, the amount is equal to the currency amount (which is rarely correct). opw 611254
[FIX] auth_ldap: remove unused sql column
[FIX] account_voucher: import invoices, sign according to transaction type