[IMP] allow many2many to specify formview (web client)

One2Many fields can specify sub tree and sub form view, to be used when
displaying a list view and when adding/editing an element.  Many2many
can display a sub tree view, but ignore sub formviews.  This can be
fixed by specifying an alternative_form_view to the popup form widget.
[IMP] account: account.statement.operation.template model
- better many2one ondelete strategies
- added analytic account domain
- added multi-company support
[IMP] im_livechat : the rule are now matching with the country (these are not blocked country anymore). A rule is define for a specific URL and country (if geoip installed). Add the sequence field to prioritize the matching. Also improve xml views.
[FIX] stock: rename picking to transfer, to be coherent with 52c3b52bf09fea7e0920ebcec3f0e8acb066b2b7 (this commit replaces 39606a7d270a6c08c1e95d557b9d8f2751207139)
[REV] stock: revert of f229d40fb7a2a16c6f211a059694b18124b9719a

Reintroduction of field mes_type on product.template. This field was not
used in the code anymore, but we keep it for future use.

This field allows the user to express that there is no fixed conversion
rate between uom and uos.

(also very partial revert of 52c3b52bf09fea7e0920ebcec3f0e8acb066b2b7)
[FIX] mail: remove deprecation warning when converting a non Date object into moment
[FIX] fix a crash when editing dashboard title (web)

fix is very simple. no further comment required I think.
[FIX] add some warning in reconcile_partial + split payment in several smaller payments if payment is bigger than invoice
[FIX] account : Fix the model 'account.statement.operation.template' has no access rules.
[FIX] account : Fix the order of imports.
[FIX] account : Fix the 'account.statement.operation.template' object defination.
[FIX] account : Fixed the access right related issue.
[FIX] fix reloading problem (crash) in web client

The previous viewmanager (before its refactoring in sept/oct 2014) was
ignoring some promises in its do_load_state method.  The refactoring
actually fixed that, but of course, some other code was dependent on
the broken implementation.  This commit removes the use of promises in
do_load_state, which is functionally equivalent to the previous code.

As a result, it relies on some subtle timing of the creation and
initialization of various views.  It is somewhat fragile, but it is
actually what the former code did, only in a more explicit way.
[FIX] account : Fixed the global name 'cr' is not defined.
[FIX] account : Fixed the global name 'float_compare' is not defined.
[FIX] account : Fixed the global name 'context' is not defined.
[IMP] Layout of forum
[IMP] default demo data forum
[IMP] css forum
[IMP] Tags on discussions and links