Added Helper Functions for events.deleteDate. Its stored as integer for unixtime.

src/util.ts

@@ -39,3 +39,6 @@ export function getTsNow() {
   }
   return rtn;
 }
+
+export function unixToDate( unix_timestamp: number ) { return new Date(unix_timestamp * 1000) }
+export function dateToUnix( date: Date ) { return Math.round( date.getTime()/1000 ) }