Switch URL to new upstream.

Switch to AUTORELEASE for simplicity.

Removed most patches as they have been upstreamed. Rebased the remaining
one.

Fixed license information.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

Build timestamps prevents reproducible builds [0].

[0] https://reproducible-builds.org/docs/timestamps/

Signed-off-by: Alexander Couzens <lynxis@fe80.eu>