Upgrade to Echo 3.0
Minor IDEA project definitions update.
Merge branch 'master' of github.com:exxcellent/echolot

Conflicts:
	.idea/artifacts/echolot_demo_war_exploded.xml
	.idea/inspectionProfiles/echolot_inspections.xml
	.idea/misc.xml
	echolot-app/echolot-app.iml
	echolot-app/lib/echo3-app-3.0.b8-SNAPSHOT.jar
	echolot-app/lib/echo3-app-3.0.jar
	echolot-app/lib/echo3-app-3.0.rc1.jar
Another round of IDEA project definitions updates.
Provide "run" target shortcut in main build.xml
Implement Serializable to avoid a (sporadic?) XStream exception on selecting rows in some environments.
Ommit system-local settings in IDEA artifact.
Fixup: Fix broken merge and use official Echo 3.0.0 release (vs. eXXcellent branch).