Refactor: Making a release now adds a RELEASE file with the tag and commit number.
Refactor: fixed shebang for deploy script
Updated Composer and added release notes for 4.0.* releases.
Added release notes for 4.0.* releases
Composer update (janus 1.17.2 => 1.17.3, swiftmailer 5.0.3 => 5.1.0, symfony 2.3.11 => 2.3.12)