[master] + integrate Grizzly 2.3.12
[master] fix issue #549
https://github.com/AsyncHttpClient/async-http-client/issues/549
"[grizzly-provider] connection abort, when neither transfer-encoding nor content-length is specified"
Merge pull request #552 from oleksiys/master

merged
[master] (forgot to add files) fix issue #549
https://github.com/AsyncHttpClient/async-http-client/issues/549
"[grizzly-provider] connection abort, when neither transfer-encoding nor content-length is specified"
[master] fix issue #499 (not all the proposed changes are taken)
https://github.com/AsyncHttpClient/async-http-client/pull/499
"NonBlockingFeeder improvements"
Fix test: http://google.com/ now replies with 302 instead of 301
Fix test: http://google.com/ now replies with 302 instead of 301
Clean up damn tests
Make SignatureCalculator available on RequestBuilderBase, close #557
Introduce Realm useAbsoluteURI and omitQuery, close #553
Advertise 1.8.9
[master] + fix the issue #559
https://github.com/AsyncHttpClient/async-http-client/issues/559
 GrizzlyAsyncHttpProvider hangs on Exception #559
[master] + minor updates
[master] + integrate Grizzly 2.3.13
Port #563 on master
New URL
Have one central place for configuration defaults, close #565
Only trigger IdleChannelDetector when maxIdleTime is > 0, close #566
Use Java8 ConcurrentHashMap backport
 [master] fix issue #564
https://github.com/AsyncHttpClient/async-http-client/issues/564
"emtpy HTTP delete message is sent using chunked transfer-encoding for no reason"