1.	Added /common child module that contains common artifiacts and changed other modules accordingly
2.	Added /jetty child module attempting to deploy the Web Application using an Embedded Jetty 9 Arquillian Container Adapter
(which is currently failing; see /websock-poc/jetty/src/test/java/com/websockpoc/jetty/WebsockJettyDeploymentTest.java
for details)