Add support for Storage Access Framework

[JaredBanyard]

I seem to be having permission problems pulling images from the "Recent" images, with it complaining about android.permission.MANAGE_DOCUMENTS missing, even though I have it declared.

[kegsay]

This library does not currently support SAF yet, so make sure your image URIs are compliant if you're running on Kit Kat. https://developer.android.com/guide/topics/providers/document-provider.html

[jdamcd]

Thanks @Kegsay, I've updated the title to make the problem a bit clearer.

[Weexcelindia]

Its not working for me for kitkat. Can you give a snippet?

[gelbertgel]

It is not working for me too