[FIX] Add context propagation for m2m list view

Fix bug https://bugs.launchpad.net/openerp-web/+bug/1279885 :
    Many2many fields in Tree views will not get translated.
    If you check the context for a name_get of a m2m field, it is passed as
    None.

Add context propagation to m2m fields in list views.
Fix translation issues when viewing a a many2many field in a Tree view.
[FIX]: change correct label and fields in Event Analysis.
[FIX]: Bad display in kanban view with a group by in Event.
[FIX]:IE9 Kanban: The 'show more' button is not display correctly.
[FIX] display_name is not compute for non-active partner
[FIX] sale: cannot filter on paid = False
[FIX] mail: Speep improvement when sending email using 'Send by Email' wizard. (Maintenance Case: 606994)
[FIX] fixes #204 : correct report translations by 'cloning' web.layout and website.layout (inherit in primary mode) to avoid constantly synchronise website and website_report + do not wrongly update the context and loose the selected lang
[FIX] do not access website during test execution
[FIX] earlier set of 'translatable' key in report context
[FIX] attempt to render website.layout during test execution
[FIX] request unbound during test execution, add condition in website.layout and livechat
Merge remote-tracking branch 'odoo/saas-5' into saas-5-report-translation-fix-sle
[IMP] mail, website_mail_group: discussion group improvements
- added possibility in mail to have a model adding custom headers in emails sent for notifications for new messages
- mail.group now add list-id and precedence: list in the headers to inform mailing systems that those mails are to be considered as mailing lists
- website_mail_group adds some further data in the headers (subscribe, unsubscribe, archives)
- groups page now display the number of message in the last month
- notification emails are now queued after 50 recipients
parse_value: interger != float

Wwhen parsing a integer field, do not accept float values. '1' or '1.0' is ok but not '1.1'. (opw 608544)
[FIX] orm: avoir errors reading twice a field

_read_flat: remove duplicated fields in read call
get many2one: as False is instance of int, check the value of x first to avoid calling a name_get with a list of False

When we were reading twice a m2o field where at least one result is null, the first call to name_get would set the value to False instead of None and then accepted by the filter 'isinstance(x, (int,long))'
Merge pull request #506 from odoo-dev/7.0-read-duplicate-fields-mat

[MERGE] orm: avoids error when reading twice a field
[FIX] hr: typo in a field definition
[FIX] portal: typos in portal wall actions.
[FIX] web: view_list_editable, on add an item, focus on the first cell of new row

Before, the focus was set on the first row, and, thererefore, if the list was enough long, it jumped out and the actual new row was hidden