First drop for #703: detect the broadcaster
Make sure we set the proper Broadcaster when {} is used
Add a BroadcastFilterAdapter, change comments
Add support for interceptors
Do not allow duplicate listener
Add support for interceptorsgd
Add Support for ShutdownHook. Plug-in/extensions can use the API to get called when the AtmospehreFramework gets stopped
Cosmetics
Oups, IDEA + GIT never again