How to change the title in Odoo 10?
the funciton that change the tilte_part is :
_title_changed in the js file : addons/web/static/src/js/abstract_web_client.js
it uses this.set('title_part', {"zopenerp": "Odoo"});
so you can change the word odoo by something that you need. and costumize the order of the title in _title_changed to display it like what ever you want.
I have changed the Odoo 10 login page title by using website builder app  but it does not work on the other pages after login. After login when I access different installed apps then the page title shows Odoo with apps name like "Products - Odoo" or "Customers - Odoo".