Start of rewrite for ramp 1
New API, test coverage at 8% and growing...
Converted reporters to use the new Result object; untested.
API stub cleanup; tabs->spaces
Merge pull request #11 from johnmcdonnell/experimental-rewrite

Initial Reports re-write
More modeling tests, rewrite of trained features, cleaned up estimators
Added shortcuts, all tests now passing
Removing obsolete files
Folds implementations and tests. Updating selectors for new API. Coverage at 53%
Added general metric reporter.
Adjusted metrics to take a Result object
Added metrics that take an argument
Metrics are now a function of result. New reporter for dual metrics.
Creatd basic reporter combiner
Refactored result, evals->y_prds
Merge pull request #12 from johnmcdonnell/experimental-rewrite

Experimental rewrite
Added dataframe shuffler w/ test
Added watertight folds
Added tests for watertight folds; they don't all pass yet
Coverage at 57%