bring back i-w-d for xcode 6

lib/devices/ios/ios.js

@@ -337,13 +337,11 @@ IOS.prototype.startInstruments = function (cb) {
 };
 
 IOS.prototype.makeInstruments = function (cb) {
-  // I-W-D crashes on Xcode 6, so force --native-instruments-lib on
   if (this.xcodeVerNumeric >= 6 && this.args.withoutDelay) {
-    logger.warn("Your version of xcode and ios sdk do not support " +
-                "instruments-without-delay. Test execution will proceed more " +
-                "slowly");
+    logger.info("On some xcode 6 platforms, instruments-without-delay does " +
+                "not work. If you experience this, you will need to re-run " +
+                "appium with the --native-instruments-lib flag");
 
-    this.args.withoutDelay = false;
   }
 
   // at the moment all the logging in uiauto is at debug level

package.json

@@ -43,7 +43,7 @@
     "adm-zip": "~0.4.4",
     "appium-adb": "~1.3.18",
     "appium-atoms": "~0.0.5",
-    "appium-instruments": "~1.4.9",
+    "appium-instruments": "~1.4.10",
     "appium-uiauto": "~1.7.14",
     "argparse": "~0.1.15",
     "async": "~0.9.0",