Two new goals (start and stop) added.

I could not use *run* goal with deploy-artifact (eg. I was trying to add mysql-driver module and adding a new resource, a connection pool). I just could use deploy-artifact within an external jboss running. So, I added *start* and *stop* goals that works like maven-glassfish-plugin start-domain and stop-domain consecutively but for a standalone server. If jbossHome is not specified, jboss is downloaded and executed in ${project.build.directory}/jboss-as/<server-home-name>.
It also can be used on integration-test phase. Setting *start* goal on *process-classes* and *stop* on *post-integration-test* phase.