Added CostModel classes
Updated ADX jar  to 1.03 (as a separate commit)
Updated everything else!

Moved most data to R - it works, but not completely - bug where model
returns 0 cost, will fix... but regression seems to work OK.
Simple average-bounded linear model
CostModel updated to match the no-DailyInfo agent
revenue model is up
Merged new Modeler API
fixed slight merge conflict b/w me and brendan
first pass at giant merge