meteor 0.8.x upgrade and settings for docker config

I fixed all the things (or I at least I thing so) to upgrade to meteor 0.8.x.
This is a blocker for having any new MozDef deployment since I don't think there is an official script or doc for meteor 0.7.x anymore :S.
I also updated the meteor settings to be the one used by the docker config and described in the docs.

Some docs about upgrading:
* https://github.com/meteor/meteor/blob/devel/History.md
* https://github.com/meteor/meteor/wiki/Using-Blaze

I hope the descriptions of the commits are enough, otherwise feel free to ping me.
Please test it thoroughly on stage before deploying to prod.