hg: code-tools/jtreg: Add support for jdk.version.major for use in @requires

[jonathan.gibbons at oracle.com]

Changeset: 7906b5ebfc75
Author:    jjg
Date:      2015-04-16 17:45 -0700
URL:       http://hg.openjdk.java.net/code-tools/jtreg/rev/7906b5ebfc75

Add support for jdk.version.major for use in @requires
Contributed-by: jvanek at redhat.com

! src/share/classes/com/sun/javatest/regtest/RegressionContext.java
! src/share/classes/com/sun/javatest/regtest/agent/JDK_Version.java
! src/share/doc/javatest/regtest/tag-spec.html