[buildbot] reorg, cfgs for a.r.openerp in related branch

Cherry picked changes done for now in master. The plan is to have for now
a single MANIFEST for all variants, staying in master branch.
But the cfg files for each variant should lie in the corresponding branch only,
to avoid the confusion of having concurrent versions, only one being active.
[buildbot] 80 cfg was pointing to odoo master
Merge branch 'a.r.openerp-1.9' of github.com:anybox/anybox.recipe.odoo into a.r.openerp-1.9

Preferring not to rebase, in order not to interfere with the fact that
the buildbot reorg is merged into master (less conflicts downstream)
Should have pulled first...