tmva: minor change in README
tmva: refactor yaml parsing
tmva: tests for utils
tmva: Makefile targets for tests
classify.py: disable progress bar
tmva: rename yaml description file
tmva: change imports in utils
tmva: improve option handling in effscan.py
tmva: utils, don't remove file key from yaml dict
tmva: new key in yaml file description for easy id
tmva: config to compare 3 different BDTs
tmva: script to plot variable distributions

- Plot variables after various transforms (including identity)
- Plot correlations (w/ profile plots) (FIXME: commented out, doesn't work)
tmva: plotcorrns.py, printing to png sort of works