452188 Delay dispatch until content optimisation
452188 Delay dispatch until content optimisation

Added module and xml support
451529 Change sentinel class for finding jstl on classpath to  org.apache.taglibs.standard.tag.rt.core.WhenTag
452201  EnvConfiguration.destroy() should set the classloader
447472 Clear async context timeout on async static content
452424 Do not add Date header if already set
452188 Delay dispatch until content optimisation.

Renamed property "delayDispatchUntilContent".
452516 - Make HttpOutput aggregation size configurable.

Introduced new property "outputAggregationSize" in HttpConfiguration,
and correspondent property in XML file.
improved debugging
ignore bad test
Fix compile error when compiling on Java 8.

Signed-off-by: Timo Kinnunen <timo.kinnunen@gmail.com>