Fixes fixture restoration with migrations
Revert "Updates Rails to 4.1.8"

This reverts commit 893a985713c905af59f4cbe04aa90a80c9bbb664, coz it breaks travis.
Fix unparseable number on mmp report - closed #302
update report in test mode
Normalizes taxes in catalogs, sales and purchases. Fixes #278.
fix provisionnal_mmp clodes #302
Divides test by locales for Travis