Merged changes from SimpleSamlPhp Janus module (https://github.com/janus-ssp/janus)
Aded gitignore file
Removed surfnet references from copyright since it is now a Janus project
Ran php PSR fixer level=all
Added composer file
Prefixed all classes with JanusSsp pseudo namespace
Moved OpenSsl and Shell into JanusSsp Root namespaces
Applied fix from: https://github.com/janus-ssp/janus/commit/4382bd132ecbfd0b6b4023f485ad5c6e0beeba4f
Merge branch 'develop'