#6 addtional checks on Android

Author: EddyVerbruggen

Diff for: README.md

@@ -85,8 +85,8 @@ The success callback (second argument) gets a JSON object with the following con
  obj.middleName   // null (or undefined, depending on the platform)
  obj.familyName   // 'Verbruggen'
  obj.birthday     // '1977-04-22'
- obj.ageRangeMin  // 21 (or null or a different number)
- obj.ageRangeMax  // null (or a number)
+ obj.ageRangeMin  // 21 (or null or undefined or a different number)
+ obj.ageRangeMax  // null (or undefined or a number)
 ```
 
 ### Try silent login

Diff for: src/android/GooglePlus.java

@@ -119,8 +119,12 @@ public void onConnected(Bundle connectionHint) {
           result.put("middleName", user.getName().getMiddleName());
           result.put("familyName", user.getName().getFamilyName());
           if (user.hasAgeRange()) {
-            result.put("ageRangeMin", user.getAgeRange().getMin());
-            result.put("ageRangeMax", user.getAgeRange().getMax());
+            if (user.getAgeRange().hasMin()) {
+              result.put("ageRangeMin", user.getAgeRange().getMin());
+            }
+            if (user.getAgeRange().hasMax()) {
+              result.put("ageRangeMax", user.getAgeRange().getMax());
+            }
           }
           if (user.hasBirthday()) {
             result.put("birthday", user.getBirthday());