update README.md to inform the handle of cookies

Fix notification value for android download Manager

Reject promise by iOS openDocument when a file is not opened

No depracation warning on instantiating dirs

Bug fix: Support Android content URIs for upload

Bug Fix Branch 0.10.9 "...exposed beyond app through Intent.getData() " at Android N

fixes #64

Add manual linking instructions

There are a million issues around people having issues with automatically linking and having a link to manual instructions would address a lot of these up front. This also follows the instructions pattern of most react native modules.

Response typo

Bug Fix: getExternalFilesDir null check

compatible with RN > 0.49

Fix typo: "Status" instead of "Statu"

Update README with proper status code handling

RN > 0.49 requires to implement requiresMainQueueSetup.
this fix and suppress that yellow box warning

```
Module RNFetchBlob requires main queue setup since it overrides `init` but doesn't implement `requiresMainQueueSetup`. In a future release React Native will default to initializing all native modules on a background thread unless explicitly opted-out of.
```

Synchronized tables, separated requests and network logic and other...

Inform linter that we're handling android api versions correctly

Implement `requiresMainQueueSetup`, fixes #553