Use service rather than running the init script

Rather than using the init script, use service resource to start the
node applicaiton.

Also contains changes to write the log and pid to a shared directory. Symlinks
to these are created in the current release directory.
Configure sc-emitters application

This also includes the changes that were done in the sc-server application
in the previous commit.
Aggregate all the recipes into a single role.

This role keeps the run-list which aggregates all the recipes in order.
Deploy script

Single command deploy script for the node-js applications.