hg: jdk/sandbox: http-client-branch: enable TLS 1.3 by default

[michael.x.mcmahon at oracle.com]

Changeset: 4cd8d88dab38
Author:    michaelm
Date:      2018-07-03 14:12 +0100
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/4cd8d88dab38

http-client-branch: enable TLS 1.3 by default

! src/java.net.http/share/classes/jdk/internal/net/http/AbstractAsyncSSLConnection.java
! src/java.net.http/share/classes/jdk/internal/net/http/HttpClientImpl.java
! test/jdk/java/net/httpclient/http2/FixedThreadPoolTest.java
! test/jdk/java/net/httpclient/http2/TLSConnection.java