v0.2.0

This minor release includes the following notable features, improvements and fixes:

• feat: introduce Session tombstone property (13db901)
• feat: introduce session expiration configuration option (fcbf82c)
• feat: ensure Session tombstone has not passed upon retrieval (9d99a6f)
• feat: implement Session touch method to postpone tombstone (c0c9751)
• feat: touch session upon store read and write (01a8bd0)
• feat: set cookie to expire upon session expiration (0a122a9)
• feat: deprecate Cookie expires and maxAge options (2b25d81)
• refactor: export middleware as constant (a528ae0)
• fix: allow cookie prefix to be the empty string (b18418e)

A complete overview of all the changes made since the previous release: v0.1.0...v0.2.0