fixed issues with episode of care counting not working with multiple episodes of care in a measure.  Also fixed an issue with specific occurrences not getting passed down properly from unions and crossproducts
characteristics can produce undefined in mongo 2.4.  In that case we want to use null instead so that the string match function behaves appropriately
removed TODO comment
Merge branch 'develop' of github.com:pophealth/hqmf2js into develop
Enable logging and rationale separately
Add specific occurrence and intersection logging
added ability to easily turn on crosswalk checking
fixed issue with length of stay calculation not respecting units
fixed what looks like a copy/paste error with negate=true
Minutes difference should ignore seconds according to latest eMeasure implementation guide.
turned off true crosswalk check
Merge branch 'develop' of github.com:pophealth/hqmf2js into develop
Merge remote-tracking branch 'origin/develop'