392129 fixed handling of timeouts after startAsync
Merge remote-tracking branch 'origin/jetty-8'

Conflicts:
	jetty-server/src/main/java/org/eclipse/jetty/server/AbstractHttpConnection.java
	jetty-server/src/main/java/org/eclipse/jetty/server/AsyncContinuation.java
	jetty-server/src/main/java/org/eclipse/jetty/server/Request.java
	jetty-servlets/src/test/java/org/eclipse/jetty/servlets/AbstractDoSFilterTest.java
392129 fixed merged of handling of timeouts after startAsync