Intermittent Test Failure: MQ Task Handling

Bunch of weird things:

```

  988 passing (19m)
  9 failing
  1) MQ #bindQueueToExchange() verify you can bind queues to exchanges in parallel:
     Error: timeout of 60000ms exceeded
      at null.<anonymous> (/home/travis/build/oaeproject/Hilary/node_modules/mocha/lib/runnable.js:139:19)
      at Timer.listOnTimeout [as ontimeout] (timers.js:110:15)
  2) MQ #unbindQueueFromExchange() verify parameter validation:
     Error: timeout of 60000ms exceeded
      at null.<anonymous> (/home/travis/build/oaeproject/Hilary/node_modules/mocha/lib/runnable.js:139:19)
      at Timer.listOnTimeout [as ontimeout] (timers.js:110:15)
  3) MQ #submit() verify callback:
     Error: timeout of 60000ms exceeded
      at null.<anonymous> (/home/travis/build/oaeproject/Hilary/node_modules/mocha/lib/runnable.js:139:19)
      at Timer.listOnTimeout [as ontimeout] (timers.js:110:15)
  4) MQ #submit() verify redelivered messages are not re-executed:
     Error: timeout of 60000ms exceeded
      at null.<anonymous> (/home/travis/build/oaeproject/Hilary/node_modules/mocha/lib/runnable.js:139:19)
      at Timer.listOnTimeout [as ontimeout] (timers.js:110:15)
  5) TaskQueue #bind() verify a bound worker can receive a task:
     Error: timeout of 60000ms exceeded
      at null.<anonymous> (/home/travis/build/oaeproject/Hilary/node_modules/mocha/lib/runnable.js:139:19)
      at Timer.listOnTimeout [as ontimeout] (timers.js:110:15)
  6) TaskQueue #bind() verify binding an existing queue doesn't invoke an error:
     Error: timeout of 60000ms exceeded
      at null.<anonymous> (/home/travis/build/oaeproject/Hilary/node_modules/mocha/lib/runnable.js:139:19)
      at Timer.listOnTimeout [as ontimeout] (timers.js:110:15)
  7) TaskQueue #bind() verify an exception is caught when thrown from a task handler:
     Error: timeout of 60000ms exceeded
      at null.<anonymous> (/home/travis/build/oaeproject/Hilary/node_modules/mocha/lib/runnable.js:139:19)
      at Timer.listOnTimeout [as ontimeout] (timers.js:110:15)
  8) TaskQueue #unbind() verify unbinding and then rebinding:
     Error: timeout of 60000ms exceeded
      at null.<anonymous> (/home/travis/build/oaeproject/Hilary/node_modules/mocha/lib/runnable.js:139:19)
      at Timer.listOnTimeout [as ontimeout] (timers.js:110:15)
  9)  "after all" hook:
     Error: timeout of 60000ms exceeded
      at null.<anonymous> (/home/travis/build/oaeproject/Hilary/node_modules/mocha/lib/runnable.js:139:19)
      at Timer.listOnTimeout [as ontimeout] (timers.js:110:15)
```