Revised nodejs v0.10.26 installation

* Install node.js v0.10.26 from a package stored in our Amazon S3 space

* Ensure the old version of node.js is removed

* Ensure any old installations of the fibers module are removed

* Add the rlwrap package

* Ensure the chris-lea node.js PPA is removed, because it no longer
  offers the exact node.js version we want

* Bonus: Only add the deadsnakes PPA when necessary