Upgrade async-http-client to 2.0.x

[jeffpeiyt]

Seems the issue of SSL handshake ( required in client auth ) in AHC 1.9+ has been fixed: https://github.com/AsyncHttpClient/async-http-client/issues/891

https://github.com/AsyncHttpClient/async-http-client/issues/828

Now start to evaluate the AHC 2.0.x . Note that it requires JDK8. the code is in branch issue37

Tracking

• [x] Code changes
• [x] Build passed with all the tests; built new maven version
• [x] Change parallec plug in : client auth
• [ ] Test reliability and performance in QA / Production

[jeffpeiyt]

Version 0.20.0-SNAPSHOT

2016-09-30

• Issue #37. Upgraded Async-http-client to version 2.0.15. This version has not been tested in PROD environment. The client auth plugin is to be tested. The code is in branch issue37

[jeffpeiyt]

Code has been pushed to maven https://oss.sonatype.org/content/repositories/snapshots/io/parallec/parallec-core/0.20.0-SNAPSHOT/

[jeffpeiyt]

Build passed: https://travis-ci.org/eBay/parallec/jobs/163939785

[jeffpeiyt]

plugin pushed as https://oss.sonatype.org/content/repositories/snapshots/io/parallec/parallec-plugin-http-clientauth/0.20.0-SNAPSHOT/