Display spice fail errors

Solves our issue of serp hanging in limbo, on a failed spice call. So now on error we redirect to root page, for e.g. bad hostname error SS:
![ddgredirect](https://cloud.githubusercontent.com/assets/1424236/4702074/a4777832-585f-11e4-8ed6-1a488bf9f577.png)

Yea, about that, i left it like that purposely, cause i couldnt figure out what to do about codio (since i use localhost). The hostname i get for e.g. teresa-misted, but not teresa-misted.codio.io, any ideas how we check if the machine is on codio etc? I know a hack, but if there is an alternative let me know. ty