hg: jdk9/sandbox: Merge

[magnus.ihse.bursie at oracle.com]

Changeset: 623c51eeedcb
Author:    ihse
Date:      2015-04-10 10:48 +0200
URL:       http://hg.openjdk.java.net/jdk9/sandbox/rev/623c51eeedcb

Merge

! common/autoconf/configure.ac
! common/autoconf/flags.m4
! common/autoconf/generated-configure.sh
! common/autoconf/spec.gmk.in
! make/Images.gmk
- make/MakeHelpers.gmk
! make/common/JavaCompilation.gmk
! make/common/NativeCompilation.gmk
! make/jprt.properties