[FIX] models: wrong var used in _compute_display_name(), fixes issue #1002

fixes issue 1005

The method does not follow naming conventions. Therefore the "guessing" api
decorator picks the wrong method wrapper.

(Manual rebase of #1003)

[IMP] Crm: Add tracking mixin to manage utm campaign and add this mixin to mass_mailing, crm_lead and sale_order

[FIX] models, fields: add model dependencies for models backed up by sql views

Don't include xml declaration when compiling rST module descriptions to HTML

lxml (used by the html sanitizer) really does not like documents as unicode
strings with an encoding declaration (which doesn't make sense indeed), yet
docutils with output_encoding=unicode generates one (a stupid one too, says
"encoding=unicode").

Disable the xml declaration altogether when compiling rST module declarations
to HTML.

[FIX] fields: add a type to field Id; this fixes #990

[FIX] models: reorganize model instantiation

Remove redundant calls to list()

Unsafe listification of weakref in Python < 2.7.4

- sessions are now shared between series.
- use site data dir instead of user data dir if user has no home dir.
- in http and module handling, `data-dir` was used before being
initialized, using the default value instead of user input

(fixes #308, #904)

[REM] models: remove the magic methods signal_XXX()

Fixes #971:

File "/Users/keje/src/odoo/addons/account/partner.py", line 107, in get_fiscal_position
    return part.property_account_position.id
NameError: global name 'part' is not defined

[FIX]menu bar: clean up css and few cosmetics

(Manual rebase of #956, pending update in Launchpad translations)

* Either further operations don't really care (e.g. ``str.join`` takes any
  iterable)
* Or they do their own seq (``browse`` calls ``tuple()`` on iterable params)

Fixes #966

* As a preallocation optimization, ``list()`` calls ``__len__`` on its
  parameter if it's available
* Before Python 2.7.4, WeakSet has a bug[0] where ``len()`` is unsafe: it is
  done by iteration and weakrefs may be removed from the underlying set during
  the iteration

As a result, the safety feature of listifying a WeakSet to ensure we have
strong refs on all items during iteration may blow up.

Wrapping the weakset in a ``iter()`` makes ``__len__()`` invisible and ensures
we're within the IterationGuard[1].

Which now that I think about it means we *should* be able to safely iterate
weaksets in the first place and may not have needed to listify them...

[0] http://bugs.python.org/issue14159
[1] http://hg.python.org/cpython/file/b6acfbe2bdbe/Lib/_weakrefset.py#l58

Raise exception when a DB request fetches ids it was not asked for

"Ordem de Vendas" changed to "Ordem de Venda"

(Rebase of PR #883)

Likely caused by a type incoherence e.g. providing an id as string when the
table uses integer ids. Postgres performs an implicit conversion from string
to integer[0], this wasn't much of an issue in the old API, whatever cache was
there would simply not be used, but because the new API's cache is part of its
behavior it has a semantic impact and can lead to infinite recursion.

[0] more precisely from quoted value, which is untyped

Fix implicit globals in kanban_gauge JS

A squashed merge is required as the conversion of the apiculture branch from
bzr to git was not correctly done. The git history contains irrelevant blobs
and commits. This branch brings a lot of changes and fixes, too many to list
exhaustively.

- New orm api, objects are now used instead of ids
- Environements to encapsulates cr uid context while maintaining backward compatibility
- Field compute attribute is a new object oriented way to define function fields
- Shared browse record cache
- New onchange protocol
- Optional copy flag on fields
- Documentation update
- Dead code cleanup
- Lots of fixes

(Manual rebase of PR #915)

(Manual rebase of PR #913)