Topic/stabilise build 1

Fixes for #144, #146, #150 #152, as per commits below. 
Not until the next release of sbt :-)  See
https://github.com/sbt/sbt/issues/1592 for the reason.

On Mon, Oct 6, 2014 at 3:27 PM, Henry Story <notifications@github.com>
wrote:

> In README.md:
>
> > @@ -69,6 +69,59 @@ $ sbt +banana_jvm/test   # for jvm only
> >
> >  ( note: scala-js compilation uses more memory. see [travis.yml](.travis.yml) )
> >
> > +IDE Setup
> > +=========
> > +
> > +`banana-rdf` works with both [eclipse](https://www.eclipse.org/) and [IntelliJ IDEA](http://www.jetbrains.com/idea/).
>
> @betehess <https://github.com/betehess> do you care to add a quick note
> on what should go for Ensime?
>
> —
> Reply to this email directly or view it on GitHub
> <https://github.com/w3c/banana-rdf/pull/155/files#r18479310>.
>