hg: jdk9/sandbox: 8179453: Add a proper SetupProcessMarkdown

[chris.hegarty at oracle.com]

Changeset: 481bd01358a9
Author:    ihse
Date:      2017-05-03 08:46 +0200
URL:       http://hg.openjdk.java.net/jdk9/sandbox/rev/481bd01358a9

8179453: Add a proper SetupProcessMarkdown
Reviewed-by: erikj

! common/doc/testing.md
! make/Javadoc.gmk
! make/UpdateBuildDocs.gmk
+ make/common/ProcessMarkdown.gmk