redis example: use javascript parser

[klaemo]

Hey,
while deploying an app that uses node_redis to nodejitsu I noticed that the hiredis parser doesn't seem to work.
So I passed { parser: 'javascript' } to redis.createClient as mentioned in the node_redis docs

Unless there is something inherently wrong with this solution, I think it should be added to the redis section of the handbook.

Cheers,
Clemens

[jfhbrook]

This actually solves a lot of my problems. If you pull request this to https://github.com/nodejitsu/handbook/blob/master/chapters/platform_features.md I will gladly accept. :D