update appium-support and appium-instruments

package.json

@@ -44,8 +44,8 @@
     "appium-adb": "=1.7.5",
     "appium-atoms": "=0.0.5",
     "appium-chromedriver": "=1.0.0",
-    "appium-instruments": "=1.7.3",
-    "appium-support": "=1.0.2",
+    "appium-instruments": "=1.7.4",
+    "appium-support": "=1.0.4",
     "appium-uiauto": "=1.10.7",
     "appium-xcode": "=2.0.0",
     "argparse": "~1.0.1",