Updated README
Improve the sample's browser-side resources
Prevent NPE
Allow configuring the path's deepth via system's property
Make Jetty 9.1.0 + JSR 356 happy
allows injecting a reference to AtmosphereResource as a parameter in a @Message method
Use released version
Fixes #1161
fixing formatting issues
adding a test
Merge pull request #1221 from klieber/topic/managed-service

Allows injecting a reference to AtmosphereResource into a @Message methods