added a source plugin so we can link to source files using maven coordinates re #104. The viewing of the source is working fine; though it requires the insight-maven mbean to be running on the server (e.g. running hawtio with -Pfabric to get this until the next fabric release). Once using the snapshot, the following URLs work (though for some reason codemirror syntax highlighting doesn't seem to work for scala/java yet): http://localhost:8080/hawtio/#/source/view/org.fusesource.insight/insight-maven/7.1.0.fuse-047/org/fusesource/insight/maven/aether/Aether.scala http://localhost:8080/hawtio/#/source/view/org.apache.camel/camel-core/2.10.3/org/apache/camel/CamelContext.java