[IMP] sale_stock: warehouse_id field on sale order is now readonly, except in draft and sent states.

To allow display the login date according to the timezone of the user

- project kanban view: dashboard-like view, add sparklines for open tasks
and closed issues
- project: cleaned demo data, less stages
- project: description is now an html field

Error during forward port

[IMP] website_forum: tag creation now done only on enter, allowing to add whitespaces in tag name. More consistent behavior with odoo.

69297dbf

[MERGE] Domain name based multi website

This should be done later properly without polluting convert.py

When a module is updated, the sql constraints were checked against postgres pg_get_constraintdef() to see if they have diverged from the one defined in python code.
However this check was failing as the syntax returned by pg_get_constraintdef() (e.g. "CHECK ((credit * debit) = 0::numeric)") differs from the one returned by `unify_cons_text` method (e.g. "check(debit*credit = 0")) so the constraints were always dropped and recomputed.
This adds a definition column on ir.model.constraint (storing original defintion) to detect changes.
The pg_constraint is still inspected to make sure we detect constraint without ir_model_constraint but with postgres constraint defined (e.g. name_uniq defined in base.sql).

This changes also the date_update field when the definition changes.

[IMP] MRP : Remove group module_product_manufacturer in Configuration of Manufacturing #918

[FIX] website_sale: The product breadcrumbs in shop not working.

[FIX] orm: correct read_group() on models with `_group_by_full` (introduced by previous forward-port)

also add tests of `_group_by_full` functionality

remove module_boot() usage

The problem was that when the user manipulates the graph view (in pivot
table mode), the graph view resetted the group by facet in the search
view.  It was not a problem unless a custom filter with a groupby was
already there, in which case, the group bys were duplicated.

The search view is now smarter, it only resets the additional groupbys
(and col_groupbys).   Also, to prevent usability problems, the graph
view disable the '+/-' groupbys added by a custom filters.

Note that this fix is only temporary: a revamp of custom filters, facets,
search view is coming in the next months. (at least, that's the idea). Right
now, too much 'search logic' is in the graph view.

Another note: this fix is somewhat fragile: it makes some assumptions
about the search query (mainly that the custom filter is the first facet,
also, that no other filters add groupbys/col_groupbys)

[FIX] website_event_sale: remove invalid code chunk introduced during previous forward-port (56f2b7ae0f6)