nodejs4: reinstate installing all the files

Cloud9 needs the headers to build the o3-xml binary, using 0.8.x headers makes it crash.

This installs everything namespaced as 'node4' to avoid collisions.

Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
cloud9: use node4 to build o3-xml binary

Using node 0.8.x will make it crash at runtime

Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>