New :
- Vassal menu (manage your vassals and/or interact with your overlord)
- For suzerain:
- List of vassals (invite/remove)
- For vassal :
- Declare Independence
- Accept a territory as suzerain
- Send money to the suzerain

- Newsletter will now expire after a given time
- Adding newsletter for vassal proposal (town only)
- Chinese translation
- Portuguese -Brasil

Bug fixes:

- Donation to a region will no longer display "successfully donated x to town"

Other:

- Removing 2 deprecated commands : `/tan acceptregion` and `/tan accept`