hg: jigsaw/jake: Exclude build artifacts from jmod files

[chris . hegarty]

Changeset: e7fc48580761
Author:    chegar
Date:      2015-10-01 15:59 +0100
URL:       http://hg.openjdk.java.net/jigsaw/jake/rev/e7fc48580761

Exclude build artifacts from jmod files

! make/CreateJmods.gmk