LDEV-3653 Add websocket server and client code. Add Ant code for deploying the server class to <WAR>/WEB-INF/classes folder for WildFly to pick it up on start up. Rearange, clean up and formatting.
LDEV-3646: Add websocket server and client code. Add Ant code for deploying the server class to <WAR>/WEB-INF/classes folder for WildFly to pick it up on start up. Clean up and formatting.
LDEV-3644 Store answer grade (%) sum in question so front-end knows whether the question was answered correctly/partially/incorrectly even if mark is 0.
LDEV-3644 Store answer grade (%) sum in question so front-end knows whether the question was answered correctly/partially/incorrectly even if mark is 0.