Improvements and Fixes
CHANGELOG
- Add php5.6 and 7.0 in travis-ci file
- Downgrade phpunit version
- Fix phpDoc
- Remove scalar type hint
- Remove return type declaration
- Fix PSR2
- Remove and ignore composer.lock file
- Add squizlabs/php_codesniffer in require-dev
- Add directory tests to Code Standards check
- Add support auto-discovery