2.16.1

What's Changed

• Update Technical Information by @koriym in #215
• Add PHP class diagram HTML page by @koriym in #216
• Fix an issue where the same class would not compile in multiple contexts by @koriym in #217 See
  https://github.com/koriym/issue/tree/ray-aop-217-aop-class-in-context
  Full Changelog: 2.16.0...2.16.1