Updated Play Akka settings to default for Async apps.

When we started this adventure we made some of our decisions based on Fear, Uncertainty and Doubt.

There was actually no reason for messing with default Play settings other than we did not really know what we were doing.

Our Apps (apart from image) are 100% async and thus should just use the default Play configuration.

The other settings like `throughput-deadline-time` never worked for us (did I mention we did not know what we were doing).

![jansen](https://f.cloud.github.com/assets/76709/1252800/ec5a73dc-2b53-11e3-8052-d78855080633.gif)