[IMP] website_sale : Don't show shipping address when only services are into shopping cart.
[IMP] When no stock moves, change whatever you want, otherwise no change at all for UoM.  #3440 Enhancement request richard-willowit

The default UoM can only be changed when there are no stock moves (or only cancelled ones), but to any category.
The purchase UoM can be changed whenever you want, but has to be in the same category as the default UoM.

Closes #3440

[IMP] When no stock moves, change whatever you want, otherwise no change at all for UoM.  #3440 Enhancement request richard-willowit

[FIX] Remove line

[FIX] Constraint should be applied when UoM or PO UoM is changed
[ADD] sale: option to install sale_layout from settings menu
[ADD] Add the website_links module.

This module tracks clicks in mass mailing mails and allow the generation of trackable links in a website interface.

Modules modifications
---------------------
Refractoring of the crm_tracking_* classes in a new module.

* Extract the crm_tracking_* from the crm module into a new module "utm"
* Remove the crm_mass_mailing bridge module
* New dependencies of mass_mailing and website_links to utm.
[ADD] stock: display UoM in stock quants
[IMP] base, ir_sequence: removed ir.sequence.type object, added test for ir.sequence.date_range, refactored ir.sequence and ir.sequence.date_range implementation
[IMP] crm: change label of 'probability' field and display 'Customer' in search instead of 'Partner'
[FIX] CRM dependencies
Creation of a new clean branch from master-wardialing-fwi
CSS Modification
Fix the call function
Modification search
Cleaning crm_voip.js
Reviewing sip_js.js and add comments
Change the automatic code and review javascript code
Fix date for firefox
change max_priority get line
Add the description
change ua config
Add translate and change ua config