Update for io.js support for node-sass

[curiouslychase]

for io.js users node-sass is failing install with Error: Module did not self-register. It looks like node-sass this has been patched for the 2.0 release (sass/node-sass#630).

[daniel-norman-sociomantic]

Same error here.

[jhnns]

#41

[jhnns]

Has been published as 0.4.0.