Show username in console title

I hope I've done everything right, I'm using svn at work so my git experience is nearly zero. 

Shows the username in console title to make identification easier when multiple instances of the client are running.

![2014-01-16_16h24_21](https://f.cloud.github.com/assets/5708045/1931702/91244afc-7ec2-11e3-824e-e40e3bb22a37.png)