fix(package): update react-native-custom-tabs to version 0.1.7

Author: greenkeeper[bot]

package.json

@@ -68,7 +68,7 @@
     "react-native-button": "2.1.0",
     "react-native-calendar-events": "1.4.1",
     "react-native-communications": "2.2.1",
-    "react-native-custom-tabs": "0.1.6",
+    "react-native-custom-tabs": "0.1.7",
     "react-native-datepicker": "1.6.0",
     "react-native-device-info": "0.11.0",
     "react-native-google-analytics-bridge": "5.3.3",