Try to update getting started instructions on OS X.
Try to update getting started instructions on OS X.

I have no clue what I am doing, but with boot2docker I get an
incompatible client/server error message.

With this changes I'm currently at the step where docker at least accept
to pull images.

dstufft/warehouse,alex/warehouse,dstufft/warehouse,pypa/warehouse,dstufft/warehouse,alex/warehouse,pypa/warehouse,alex/warehouse,pypa/warehouse,alex/warehouse,alex/warehouse,pypa/warehouse,dstufft/warehouse