basic scons support (newest mongodb releases seemed to need it)
the currently available package for mongodb is centuries old in internet years, and the new version seemed to depend on having a set of scons rules
updates node.js (tied with the latest stable release of mongo)
Blaming game :-)
It's a me, Caio
Merge pull request #44 from caio1982/master

Newer releases of Node and Mongo (plus a basic SCons support)
Update Redis to version 2.8.9.

Signed-off-by: Rudá Moura <ruda.moura@gmail.com>