Revert "bugfix: actually parse resolv.conf at startup"

This reverts commit aaa4e94f84.

The initialize_nameservers argument to evdns_base_new was deliberately
not set to 1 because we call evdns_resolv_conf_parse manually later, as
we want more differentiated error reporting.

Issue:		#86

proxy.c

@@ -281,7 +281,7 @@ proxy_new(opts_t *opts, int clisock)
 
 	/* create a dnsbase here purely for being able to test parsing
 	 * resolv.conf while we can still alert the user about it. */
-	dnsbase = evdns_base_new(ctx->evbase, 1);
+	dnsbase = evdns_base_new(ctx->evbase, 0);
 	if (!dnsbase) {
 		log_err_printf("Error creating dns event base\n");
 		goto leave1b;