[FIX] setup Environment for the report thread
Merge 8083afe7c365554e375fb16bd200ec21aa2481e8 into 736c5dd87ec9e60c3c83293e88123d569c5b4a27
[FIX] missing part of initialization in ir.model and ir.model.fields
Merge pull request #1160 from xmo-odoo/8.0-custom-models-xmo

Handling of custom models initialisation
[REM] threaded yaml import (useless and unused)
[FIX] README: update build badge for 8.0
[FIX] creation of new threads where a new API environment should be initialized

* fix #1149 courtesy of @andreparames
* remove useless threaded yaml import
* openerp.service.server thread spawning get an API environment further down
  the stack
[FIX] sale: no warn onchange pricelist and no line

The popup warning that changing the pricelist will not update the existing order lines should not be diplayed it there is no order line set.

It was the case until 8.0. The change of behavior of on changes has broken this feature: Now, the on change return [(6, 0, [])] for an empy order line list, instead of just [].
Merge branch '8.0' of https://github.com/odoo/odoo into fuso-8.0