fix missing ;

src/upgrade.js

@@ -9,7 +9,7 @@ var winston = require('winston');
 var Upgrade = {};
 
 var minSchemaDate = Date.UTC(2015, 10, 6);		// This value gets updated every new MAJOR version
-var schemaDate
+var schemaDate;
 var thisSchemaDate;
 
 // IMPORTANT: REMEMBER TO UPDATE VALUE OF latestSchema