Merge pull request #14 from simjega/master

Fixed bugs that existed with testing and with scorer.py
fix install steps in readme
Merge pull request #16 from breznak/updates

fix install steps in readme
Merge pull request #15 from simjega/master

Fix LabelCombiner bug and simplify labeling code
Remove logic for writing data file paths to a file. web viz should just use a file selection to write out paths or something.
clean up gitignore
Merge pull request #18 from scottpurdy/master

Removes nab import from setup.py
Merge minor changes from master into local repo