Share the current request timestamp acrros window via the test session
controller, calculate the time left specifically with the request
timestamp as base (not the start time of the current question), forbid
setting a timestamp older than the current one

Update Spring framework, Infinispan, Bouncycastle, ActiveMQ, SwaggerUI,
HTML parse, Java HTML sanitizer
Remove unused reference to dom4j:dom4j

This version fix an issue with the annotations metadata cache for
autowiring