Implemented authorization options: public, private, public_for_relations

.settings/com.google.appengine.eclipse.core.prefs

src/com/almende/sot/PersonService.java

src/com/almende/sot/PersonServlet.java

src/entity/Person.java

src/entity/Relation.java

war/css/style.css

war/index.html

war/js/controller.js