Take out R and clean out the install.
Install R packages, but not the R kernel (for now)
Install patched rzmq that enables c++11
Install that kernel again!
Install rzmq from PR #14
Refactor installs to make ADDs further down
Use updated install_github syntax
Install the R kernel directly in Dockerfile
Merge pull request #2 from jupyter/youRout

Temporary fix for R kernel