[ADD] ws doc: introspection, reports and workflows

* use static imports in java examples to make them terser
* inline ``domain`` in java and php example to make examples more
  self-contained
* try to extend/improve Model.write's docstring
* add convenience kwarg to fields_get, mostly for user-driven
  introspection

Closes #3689
[CHG] doc: company officially renamed
[FIX] yet another filter fix... (crm reporting)

Same problem as before: filters do not compose properly with the implicit
'&', and they are filtering on the wrong model (should filter on probability
in the crm.case.stage model and not on the crm.opportunity.report)
Merge branch '8.0' of https://github.com/odoo/odoo into 8.0-linux64