Merge pull request #184 from oblador/patch-1

Fix RN 0.48+ warning about requiresMainQueueSetup

ReactNativePermissions.m

 RCT_EXPORT_MODULE();
 @synthesize bridge = _bridge;
 
++ (BOOL)requiresMainQueueSetup
+{
+    return YES;
+}
+
 #pragma mark Initialization
 
 - (instancetype)init