Bugs fixed, code design and doc updated
Scrutinizer Auto-Fixes

This patch was automatically generated as part of the following inspection:
https://scrutinizer-ci.com/g/Spomky-Labs/OAuth2ServerMacAccessTokenBundle/inspections/f04cfcf7-89da-402f-8cb3-257ad0187e27

Enabled analysis tools:
 - PHP Analyzer
 - PHP Mess Detector
 - PHP Code Sniffer
 - Security Advisory Checker
 - PHP Copy/Paste Detector
 - PHP PDepend
 - PHP Change Tracking Analyzer
Merge pull request #2 from Spomky-Labs/scrutinizer-patch-1

Scrutinizer Auto-Fixes
Bug fixed
Composer.lock updated
Bug fixed
Merge pull request #3 from Spomky-Labs/develop

Bugs fixed and code design