Custom build plus configuration of Camus for Shopify

This is a slightly modified version of Camus upstream, it builds Camus against Hadoop 1 and 2 because we are running Hadoop2. There is also an example camus.properties files that contains all important settings with the exception of some cluster specific settings.

@burke @wvanbergen @honkfestival @airhorns 
what d'yall think?