[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.
[IMP] website_hr_recruitment: Search by country or/and department or/and by office. Default search by country with GeoIP
[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)
[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
[FIX] hr_holidays: display float for leaves remaining / leaves taken in holiday type name get
[FIX] hr: working and home adresses should not be customers by default, only 'normal' adresses.
[FIX] hr_holidays: date_from, date_to required in form view only for leave requests, not for allocation requests
Merge pull request #471 from odoo-dev/7.0-opw-606994-rgo

[MERGE] mail: Speed improvement, backport of rev ed116d6b6b5ab5e4436cce5b6da078417e0a9efc
Merge pull request #336 from odoo-dev/7.0-opw-608606-fka

[FIX] account_report_company: display_name field is not computed for non-active partners