Evaluation.py script has no EPC curve

Created by: tiagofrepereira2012

I just noticed that the ./evaluate.py script has no option to plot the EPC.

Is there any special reason for that? I know that this script works fine if we provide, as input, only --dev-files and to plot the EPC we need both (dev and eval). If this is the reason to not have it, I can just output a warning saying that (if you set the --epc with no --eval-files).

Anyways, I can implement it, no problem.