agregue metodo para parsear config de FD2/text a FD3/json, el método genera un exception cuando no es capaz de parsear la conf. (2)

src/HostBundle/Traits/DHCPOptionTrait.php

@@ -37,6 +37,7 @@ trait DHCPOptionTrait
 		    $rtr = array();
 		    foreach(preg_split("|\n|", $config) as $line){
 			$p = preg_split("|\s+|",$line);
+			if(trim($line) === "") continue;
 			if($p[0] === "option"){
 				if($p[1] === "routers"){
 					$rtr["routers"] = preg_replace("|;$|", "", $p[2]);