Merge remote-tracking branch 'origin/master' into 0.10.2

README.md

     fileCache : true,
   })
   .fetch('GET', 'http://www.example.com/file/example.zip', {
-    some headers ..
+    //some headers ..
   })
   .then((res) => {
     // the temp file path
     appendExt : 'png'
   })
   .fetch('GET', 'http://www.example.com/file/example.zip', {
-    some headers ..
+    //some headers ..
   })
   .then((res) => {
     // the temp file path with file extension `png`
 
 ```js
   RNFetchBlob.fetch('POST', 'http://www.example.com/upload', {
-      ... some headers,
+      //... some headers,
       'Content-Type' : 'octet-stream'
     }, base64DataString)
     // listen to upload progress event
 
 ```js
   RNFetchBlob.fetch('POST', 'http://www.example.com/upload', {
-      ... some headers,
+      //... some headers,
       'Content-Type' : 'octet-stream'
     }, base64DataString)
     // listen to upload progress event, emit every 250ms
 ```js
 RNFetchBlob
     .config({
-        addAdnroidDownloads : {
+        addAndroidDownloads : {
             useDownloadManager : true, // <-- this is the only thing required
             // Optional, override notification setting (default to true)
             notification : false,
     description : 'An image file.',
     mime : 'image/png',
     // Make the file scannable  by media scanner
-    meidaScannable : true,
+    mediaScannable : true,
   }
 })
 .fetch('GET', 'http://example.com/image1.png')