changes to resolve CA-653: password protect the BMDB audit trail
changes to resolve CA-653: password protect the BMDB audit trail

The BMBD audit trail now calls checkSession() to force the user to authenticate
first before being shown the contents of the BMDB audit trail. 

EDRN/biomarker-database,EDRN/biomarker-database,EDRN/biomarker-database,EDRN/biomarker-database