Add node 0.12.9 for DDOS prevention

[George Phillips]

https://nodejs.org/en/blog/vulnerability/december-2015-security-releases/

[José Moreira]

Thanks for point that out!

I've already updated node versions file, but since I'm with some troubles with docker hub auto build process, I'm build all of them on my laptop.

Hopefully they will be available soon.
You can see latest tag pulls here.

Closing this up.