grobian/carbon-c-relay — pull request #24 by WrathOfChris (2014-10-31 21:39:54+00:00)
Title: implement dns resolution of hostnames at startup

Hostnames already resolved, but only to a single IP address.

This implements a pre-resolve step prior to calling server_new() that expands any hostnames to their resultant IP addresses and calls server_new() for each address.

ie:

```
cluster loadbalanced any_of loadbalancers.example.com ;
```

would expand to:

```
cluster loadbalanced
any_of
192.168.1.10:2003
192.168.1.11:2003
192.168.1.12:2003
;
```