Add host aliases to deployment

[vaslabs]

for #50

Some imports might be broken, may worth a scala migrations thing

[vaslabs]

Also in the current state it needs documentation as the InetAddress will resolve non-ips which is either a good feature or accidental complexity

[vaslabs]

I'd rather not merge this until someone requests it:

1. I can't think of a solid use-case to actually need this, it's a workaround/hack for fixing network issues
2. It's not documented as part of the deployment but as part of the pod schema and it could be removed(?)