Add underscore source map
Merge pull request #87 from hammerlab/issue-74-missing-source-map

Add underscore source map
Add a config setting to log to a file
rework to log to stdout
move code
Address CR, fix filters functionality with SAMPLE update
Down with DEBUG; long live USE_RELOADER
another round
CR: fix style, spelling
Merge pull request #88 from hammerlab/issue-67-show-sample-info

Show attributes and values for SAMPLE columns
Merge pull request #91 from hammerlab/log-to-file

Add a config setting to log to a file
If no truthVCF, display just the run VCF. fixes #32