Replace deprecated suicide with selfdestruct

contracts/Killable.sol

@@ -7,6 +7,6 @@ import "./Ownable.sol";
  */
 contract Killable is Ownable {
   function kill() {
-    if (msg.sender == owner) suicide(owner);
+    if (msg.sender == owner) selfdestruct(owner);
   }
 }

contracts/examples/StoppableBid.sol

@@ -18,7 +18,7 @@ contract StoppableBid is Stoppable, PullPayment {
   }
 
   function withdraw() onlyInEmergency {
-    suicide(owner);
+    selfdestruct(owner);
   }
 
 }