hg: jigsaw/m2: Clear MODULES release file list before creating images

[chris . hegarty]

Changeset: cf3f3d5fae7e
Author:    chegar
Date:      2014-11-04 17:14 +0000
URL:       http://hg.openjdk.java.net/jigsaw/m2/rev/cf3f3d5fae7e

Clear MODULES release file list before creating images

! make/Images.gmk