fixed the base64 MIME type when JPG is chosen (iOS)

Merge from gre/react-native-view-shot

fixed the base64 MIME type when JPG is chosen

close java OutputStreams before resolve Promises

add null check

Add type definitions for style prop

 fixed the base64 MIME type when JPG is chosen

valid MIME type for JPEG / JPG images is "image/jpeg" 
https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/MIME_types#Image_types
This was causing Android not to recognize the screenshots taken by this library

Fix psitioning of TextureView elements relative to target element

Remove .iml file and add rule to npm and git ignore

Adding style props to main container.

Add test results for react-native-camera

Add check for null path in releaseCapture

Make onCapture & onCaptureFailure props optional in flow type

The types definition for TypeScript

Include RCTUIManagerUtils.h for more recent RN versions

Add ScrollView example

add captureScreen