uploadFile throws an exception if the API returned an error
Fixed deprecated authentication grant type
uploadFile throws an exception (message and code) if the API returned an error
Merge branch 'master' of https://github.com/nicolus/dailymotion-sdk-php into nicolus-master

* 'master' of https://github.com/nicolus/dailymotion-sdk-php:
  uploadFile throws an exception (message and code) if the API returned an error
  uploadFile throws an exception if the API returned an error

Conflicts:
	Dailymotion.php
* nicolus-master:
  uploadFile throws an exception (message and code) if the API returned an error
Merge branch 'master' of github.com:dailymotion/dailymotion-sdk-php

* 'master' of github.com:dailymotion/dailymotion-sdk-php:
  README: replace deprecated `GRANT_TYPE_TOKEN` with `GRANT_TYPE_AUTHORIZATION`