[FIX] server: db service, fix the filestore copy when duplicating a database
[IMP] menuitems cleanups

Remove Tools
Move cron, action rules and subscription to Automation
Move and rename ir_property models to Parameters
[FIX] phantomjs test remove injection

It's now deprecated, assets bundles should be used instead.
MERGE] odoo bus, im_chat and im_livechat

Add a generic bus for instant communication based on postgres LISTEN/NOTIFY and HTTP comet.
Both threaded and gevent greenlet mode are supported. Chat should now work on every platform.

im_chat improvements
- proper support for multiple windows
- present, away and offline status
- improved data model for multi user chat session

im_livechat improvements
- standard css js assets are now used
- qweb templates are now used instead of jinnja
[FIX] website snippet editor initialisation
[IMP] l10n_cn: upgrade to 1.8, including small business chart

Also removed empty translation files.

This is a manual rebase of PR #802
Merge pull request #823 from sebalix/master-fix-db-duplicate

[FIX] dbmanager duplicate db, use shutil.copytree to duplicate the filestore
[IMP] module loading and tests profiling

Add a loglevel 25 to log some INFO to runbot
Add timers for loading and testing
Silence empty test suite
ir_logging use relative pathname, warning this doesnt work for --addons-path modules yet.
[IMP] test impprove HTTPCase opener

Simplify website crawler using the generic HTTPCase opener
[IMP] website crawler log show query/s
[REM] useless icon send a message

The action is available from the wall.
[IMP] automatic fiscal positions for simple cases

Add group of countries res.country.group
Add get_fiscal_position method a method to compute a fiscal position based on company_id, partner_id, delivery_id
The meaning of res.partner.fiscal_position is now a forced a fiscal position.
The default implementation should handle simple cases, like VAT in UE and sales
tax in the US, but the method can be overriden to handle more complex ficals
rules.
[FIX] purchase_requisition test of PO's