Added run.sh which should download node.js and install it locally in order to run the server.
Added run.sh which should download node.js and install it locally in
order to run the server.

trailofbits/tubertc,genesisintro/tubertc,trailofbits/tubertc,genesisintro/tubertc,genesisintro/tubertc,trailofbits/tubertc