Merge branch 'master' into blobmaster

* master:
  Add timeout for ressource
  Fix issue : joltup#183 (comment)
  some fixes
  fix downloaded pdf

# Conflicts:
#	android/src/main/java/com/ReactNativeBlobUtil/Utils/PathResolver.java
#	polyfill/Blob.js
#	polyfill/Fetch.js
#	polyfill/XMLHttpRequest.js

Author: cguino