[FIX] web_kanban: fixed issues when having no column to display in kanban
view.
[IMP] ir_ui_view: pep8 + log catched exception when view_id cannot be found.
[IMP] ir_http: don't handle exception in dev mode but use the werkzeug debugger except if cause has been already identified (website Qweb)
[IMP] remove instant click
[IMP] sale_stock: better inherit

Better inherit of tree view of sale order line with position="attributes"
instead of postion="replace"
Fixes #3664, #3726
[FIX] im_livechat : do not crash if not Referer url in the header of the request.
[IMP] Uniformize the icon in all kanban view (Google Hamburger)
[REM] CRM : Remove old php script from crm.
[MERGE] squash-merge of odoo-dev/master-i18n-fp
[FIX] fields: in field description, return True when translate is a callable
[FIX] ir_model: in ir.model.fields, name is not translatable, but field_description is
[FIX] translate: discard removal of function _push
[FIX] translate: remove nonsensical code
[FIX] ir_translation: fix function field 'source' when field.translate is not True
[FIX] ir_translation: when loading translations, convert types 'field', 'help', 'view' into 'model'
[FIX] ir_translation: add specific methods to retrieve translations of field string and help
[FIX] ir_translation: pass lang explicitly when loading field translations for ormcache consistency
[IMP] models: improve reflection of fields into ir.model.fields

* add missing columns in base.sql
* add missing fields 'help', 'readonly', 'required', 'selectable' in reflection
* add field 'help' in ir.model.fields views
* do not patch registry with translated field string and help upon ir.model.fields update
[FIX] ir_translation: do not create translations of type 'model' with res_id=0
[FIX] ir_translation: fix model for resolving xml ids from po files