renamed ReportUtil because one exists in Reporting
changed reports --> reporting package
switched back to using ReportDefinitionService instead of MOHReportUtil
updated cohort count page so it actually works
removed blank default for built-in report
updated cohort definition to reference null reasons instead of "invalid"
added calculation module and upgraded reporting module dependencies
added columns pulling from the scratch table, rather than from logic rules
updated gitignore
removed IML files from repo