Tusky v9.0

- You can now create Polls from Tusky
- Improved search
- New option in Account Preferences to always expand content warnings
- Avatars in the navigation drawer have now a rounded square shape
- It is now possible to report users even when they never posted a status
- Tusky will now refuse to connect over cleartext connections on Android 6+
- A lot of other small improvements and bug fixes
