Fix DateTime Print for Console.

When running in console, Timestamp was not printed properly.

Before
```
[1/1/0001 12:00:00 AM] Found job on fooqueue
[1/1/0001 12:00:00 AM] Checking fooqueue
[1/1/0001 12:00:00 AM] Got fooqueue
[1/1/0001 12:00:00 AM] Got fooqueue
```

Ater Fix
```
[2013-11-08 22:53:44Z] Found job on fooqueue
[2013-11-08 22:53:44Z] Checking fooqueue
[2013-11-08 22:53:44Z] Got fooqueue
[2013-11-08 22:53:44Z] Got fooqueue 
```