1585 Return image picker method call results on the platform thread (cla: yes)

1586 [image_picker] iOS: save image to the correct type based on its original type and copy over exif data from the original image (cla: yes)

1587 [in_app_purchase] Updated error handling in queryPastPurchases and queryProductDetails (cla: yes)

1588 [in_app_purchase] Guard against dupe onBillingSetupFinished calls (cla: yes)

1589 [in_app_purchase] Fix issue with empty purchase updates (cla: yes)

1590 [in_app_purchase] Propagate launchBillingFlow failures (cla: yes)

1592 [android_intent] Add the component name to the intent. (cla: yes)