hg: jigsaw/jake: Switch to jtreg tip

[alan . bateman]

Changeset: a4f7ee0711f0
Author:    alanb
Date:      2017-03-28 13:23 +0100
URL:       http://hg.openjdk.java.net/jigsaw/jake/rev/a4f7ee0711f0

Switch to jtreg tip

! common/conf/jib-profiles.js