Nuxeo Runtime 2: OSGi, Glassfish support, etc

Nuxeo Runtime is a micro kernel that serves as the foundation for all Nuxeo applications, providing a modular and extensible architecture based on OSGi components. Future developments include rewriting Nuxeo Runtime on top of HK2, enhancing it with new features such as dependency injection and annotations for extension points while preserving compatibility with existing models. The shift aims to simplify configuration management, reducing the reliance on XML for declarations.