[ooo-build] ANNOUNCE: ooo-build-3-1-1 branch ready

[Tor Lillqvist]

> Plans with master:

> + will be updated for DEV300 within next days/weeks (please, be patient, any
>   volunteer?)

I volunteered to do this. I have so far just committed changes locally but will start pushing stuff on Monday evening (European time). Pease make sure you have a buildable ooo-build-3-1-1 branch before that, and move your uncommitted test stuff there, as master will not be buildable for quite a while.

--tml