[FIX] Remove additional company assignments to currencies
[MERGE] base: remove remaining company assignments on currencies, courtesy of Stefan Rijnhart (Therp)
[FIX] base: fix o2m testsuite following change of default currency data, in relation with bug 1111298
[MERGE] base: remove remaining company assignments on currencies, courtesy of Stefan Rijnhart (Therp)

Fix of the testsuite (in openerp/addons/base/test/test_osv_expression.yml)
done on top of Stefan's original patch