Security release

This release incorporates @scholtzm's fixes which address the issues in #35

Thanks to the following contributors:

• @mnzt
• @ha1331
• @KonDax
• @scholtzm
• @bartlomiej-korpus

Official release.

Moved to a stage where Passport-steam is ready for production. Have implemented SemVar version ing for the future.

THIS RELEASE WILL NOT BREAK YOUR BUILD.