use redguide's nodejs, add its dependencies (ark, yum-epel)

Our previous nodejs cookbook simply installs a deb file, which blew up
when I tried to install nodejs 0.10.18 on Ubuntu 10.04, because this
version of nodejs was compiled with glibc 2.15 while lucid only has up
to 2.11.

This new nodejs cookbook allows installing from source, which solves
this problem. It also has installing from package and precompiled
binary, with support for both rhel and debian based OSes.

https://github.com/redguide/nodejs
https://github.com/burtlo/ark
https://github.com/opscode-cookbooks/yum-epel