Simplify run-support project setup in build
Use cross-compiled sbt io dependencies for run-support

Note: the 2.11 dependency is for sbt 0.13.6.
Mark them as provided dependencies.
Remove scripted publish local dependencies

This was duplicating the publish in the runtests script.
And building the docs takes a while.
Merge pull request #3730 from pvlugter/run-support

Update build setup for run-support project