[2.3.x] + fix copyright
[2.3.x] Clarify the javadocs for getWorkerThreadPoolConfig() after builder changes introduced in 2.3.6.
[2.3.x] Changes for https://java.net/jira/browse/GRIZZLY-1597 (Improve logging when url decoding invalid urls (example: invalid percent encoded sequence) and https://java.net/jira/browse/GRIZZLY-1599 (Parameter processing behavior differs depending on if the source is Buffer, char[]. or String.)
[2.3.x] + implement improvement #1596
https://java.net/jira/browse/GRIZZLY-1596
"Input/OutputBuffer notification has to be performed in the HttpHandler.getThreadPool() thread"