A better reply to an empty crossbar request

Currently, the reply to an empty crossbar request is lacking a newline, which is not very cool. see Fig.1

The added newline is fancy. see Fig. 2.

Some fancy ANSI coloring, now we're talking! see Fig.3

Figure 1: 
![crossbar broken](https://f.cloud.github.com/assets/1163438/230900/844aed2a-86db-11e2-9f4c-d5c45df8265e.png)


Figure 2: 
![crossbar better](https://f.cloud.github.com/assets/1163438/230902/ae861344-86db-11e2-86e7-1e239364ec4d.png)


Figure 3: 
![crossbar even better](https://f.cloud.github.com/assets/1163438/230907/ce4a3228-86db-11e2-834d-7c88512bed08.png)