Adding GWT Maven Archetype

Add Archetype... and enter:
* Archetype Group Id: org.codehaus.mojo
* Archetype Artifact Id: gwt-maven-plugin
* Archetype Version: 2.1.0-1
* Repository URL: http://repo1.maven.org/maven2

linking pojo projects into a gwt project in eclipse

1. export the pojo project as a jar file. make sure the source code is included
2. import the jar file into the gwt project as an external jar