hibernate spatial tutorial adapted from hibernatespatial.org
run with statements like:
- mvn exec:java -Dexec.mainClass="event.EventManager" -Dexec.args="store POINT(10 5)"
- mvn exec:java -Dexec.mainClass="event.EventManager" -Dexec.args="find 'POLYGON((1 1,20 1,20 20,1 20,1 1))'"