The answer is too late, but maybe it will help someone else, for windows:

If you have installed your odoo instance with the odoo[version].exe, you need to restart the service : control panel > administrative tools > services > odoo [version]

And then restart the service.

Most of the time that is not enough, you need to go to the apps and update your module, so you can see the changes.

Go though this link and test your module

https://www.odoo.com/documentation/8.0/reference/testing.html