[FIX] fleet: prevent crash when no cost_ids
[FIX] hr_timesheet: missing '&' in domain clause

To search the contracts for payroll, the domain is constructed with three clauses. Each of these clauses needs to start with a '&' to make sure they are correctly combined with the OR clause'
[FIX] product: user who don't use product variant can't edit the price of the product in product view. This behavior is not understandable. Add a function inverse to set the value (remove the variante price before change the list_price of the template)
[FIX] hr_timesheet: handle case when has never signed in

The search may return zero results if an employee has never signed in. In this case the browse would have failed.
[FIX] point_of_sale: fixed errors that avoid closing a pos session + [IMP] account: added back the account_id field on statement.line obj to ease the reconciliation process when importing statements (or creating them through pos.orders). Fix #932
Merge pull request #1268 from odoo-dev/8.0-pos-fixes-qdp

[FIX] point_of_sale: fixed errors that avoid closing a pos session + [IM...
[FIX] purchase: set the commitment date as the max of scheduled dates when creating a picking from a PO, instead of leaving it at the current time (validation) which just doesn't make sense
[FIX] crm : propagate the lead_id when scheldule other phone calls
[FIX] web_linkedin: link (in) the config_parameter with the correct group
[REF] OpenERP --> Odoo in various UI texts

Rebranding has been done in:
- data/demo files
- html templates
- help notices
- comments
- logger messages
- and other various messages

(Commit taken from odoo-dev:8.0-improve-openerp-odoo-rlu at rev 7deaa08)

Closes #1260
[FIX] procurement: avoid to run multiple scheduler

Avoid to run the procurement scheduler multiple times in the same time, otherwise, they tend to interfere with each others
[REF] OpenERP --> Odoo in various UI texts (2)

Some things missed by commit 8b67a7202d9dd3492001cade3d361b8a5424ec3f
[FIX] website_hr_recruitment: typo during new API conversion

re fixes #1148
Merge pull request #1262 from odoo-dev/8.0-fix-product-lst_price-chm

[FIX] product: user who don't use product variant can't edit the price of the product in product view. This behavior is not understandable. Add a function inverse to set the value (remove the variante price before change the list_price of the template)
[FIX] im_chat : css style z-index to make it good with ecommerce and calendar
[FIX] sale: do not propagate context on send email

Otherwise, active_id, active_ids, active_model params are propagated, and it leads to inconsistencies.
For instances, go to Sales > Customers, choose a customer which has quotations.
On the form, hit the "Quotations and sales" Button
Choose a quotation. Hit the "send by email" button.
The template preview should be displayed correctly. Now send the email, than
 - Either, you have no traceback: The email sent is the email of another quotation, the quotation having as id the id of the partner you chose
 - Either, you have a traceback: There is no quotation having as id the id of the partner you chose.
[FIX] account: better error message when regenarating opening entries (opw 606923)

If we try to generate twice entries on the same fiscal year, we can get completly unrelated errors ("You can only reconcile journal items with the same partner").
With this, we make sure people will first cancel the entries before regeneraing the entries.
[FIX] sale: only propose services for pay advances

When creating an invoice from a sale order, if the user choose to invoice a fixed price (deposit), he has the possibility to choose an advance product. As described in the help message, this product should be a service product. Therefore, we add a domain so only services are displayed in the dropdown list
[FIX] read() method returns None values incompatible with XML-RPC
[FIX] hr_attendance: typo introduced at rev 1c9e8ba077b296ec9c334800915fbbf76c81310c