Rework test into AbstractSingleFilesystemTest that can be used as base for testing one filesystem.
Allow autoload classes from the unit tests.
Add ErrorException error handler to test environment.
Rework test case structure.
Rework test into AbstractSingleFilesystemTest that can be used as base for testing one filesystem.
Introduce phpunit.xml.dist
Introduce .gitattributes
Add several informations (version, keywords, license, support, require-dev, suggest) to composer.json