3.3.1

Merged

• Add Laravel 6 support #91

Commits

• use Illuminate\Support\Arr instead of helper methods 2e98e25
• add generated api docs index.html ba4836c
• add phpdoc block to getUsersManager() in Piwik.php 2ea7f45
• update versions e6d97cf
• update versions in README.md a4f394d
• fix missed array_dot -> Arr::dot change e952c2e