432270 - Slow requests with response content delimited by EOF fail.

Better handling of the idle case, and closing the connection only
if the response can be failed.
Improved IllegalStateException reporting.
Temporary commit to understand why HttpReceiverOverHTTPTest.test_Receive_GZIPResponseContent_Fragmented() fails.
To be reverted.
Merge branch 'jetty-9.2.x'
Restored proper logging level.
432473 web.xml declaration order of filters not preserved on calls to init()
409105  Upgrade jetty-osgi build/test to use more recent pax junit test framework
Only test osgi with annotations in jdk < 1.8
readded websocket to demo base
431642 Allow for immediate return from content callback in HttpParser
431094 Consistent handling of utf8 decoding errors
431094 Consistent handling of utf8 decoding errors
431519 Fixed NetworkTrafficListener
Merge branch 'master' into extra-start-dirs
432321 - jetty-start / Allow defining extra start directories for common configurations

+ Integration of ConfigSources with rest of startup.