* basic implementation
* improve LoginActivity
* darken drawer background image
* add current avatar in ComposeActivity
* add account name to logout dialog
* multi account support for notifications
* multi account support for notifications
* bugfixes & cleanup
* fix bug where somethings notifications would open with the wrong user
* correctly set active account in SFragment
* small improvements
This change allows the user to manually enter an unauthenticated proxy
configuration to be used for all API connections. This is mainly
intended for using Tusky with Tor (via Orbot or a local proxy).
