Kill iOS/iPhone simulator better

Turns out different versions of the iOS simular
have differently named apps, so we now call killall
for both the old and the new name.

tools/commands-cordova.js

@@ -1781,6 +1781,7 @@ _.extend(IOS.prototype, {
   killSimulator: function () {
     var execFileSync = require('./utils.js').execFileSync;
     execFileSync('killall', ['iOS Simulator']);
+    execFileSync('killall', ['iPhone Simulator']);
   }
 });