PSR-2 clean up of Filesystem/AdapterPlugin.php
PSR-2 clean up of Filesystem/BrowsePlugin.php
PSR-2 clean up of Filesystem/FlysystemContainer.php
PSR-2 clean up of Filesystem/Manager.php
PSR-2 clean up of Filesystem/PublicUrlPlugin.php
PSR-2 clean up of Filesystem/SearchPlugin.php
PSR-2 clean up of Filesystem/ThumbnailUrlPlugin.php
Merge pull request #1646 from GawainLynch/psr-2/Filesystem

PSR-2 clean up of Bolt/Filesystem/