Merge pull request #39 from pfeiffer/patch-1

Android: Specify locale to toUpperCase call

android/src/main/java/com/joshblour/reactnativepermissions/ReactNativePermissionsModule.java

 import com.facebook.react.bridge.ReadableArray;
 import com.facebook.react.modules.permissions.PermissionsModule;
 
+import java.util.Locale;
 
 public class ReactNativePermissionsModule extends ReactContextBaseJavaModule {
   private final ReactApplicationContext reactContext;
   }
 
   private String permissionForString(String permission) {
-    switch (RNType.valueOf(permission.toUpperCase())) {
+    switch (RNType.valueOf(permission.toUpperCase(Locale.ENGLISH))) {
       case LOCATION:
         return Manifest.permission.ACCESS_FINE_LOCATION;
       case CAMERA: