fioxing lint errors, and adding unit tests!

types/debessmann/debessmann-tests.ts

@@ -0,0 +1,13 @@
+import {DM, Event, EventId} from 'debessmann';
+
+let eventId: EventId = {seq: 0, time: new Date()};
+let e: Event = {_id: eventId, headers: {'header1': 'header1Val'}};
+
+let dm: DM = {
+    init(endpoint: string, auth: string): void {
+	},
+    send(data: Event): void {
+	}
+};
+dm.init("ep.debessmann.com", "AUTHID");
+dm.send(e);