add tls-mvp-server example

removed in cfe5ac5c2c66ac97c49591964b96c480e854abcb, so lets see what happens

> On 29 Oct 2014, at 15:08, Hannes Mehnert <notifications@github.com> wrote:
> 
> In scripts/tls-mvp-server:
> 
> > @@ -0,0 +1,13 @@
> > +#!/bin/sh -ex
> > +
> > +sudo apt-get install -qq -y libgmp-dev
> 
> my experience so far is that it is not -- or is it? should be investigated!
> 
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