hg: jigsaw/jigsaw/jdk: Generate signed module files in two passes.

[sean.mullan at oracle.com]

Changeset: 0786e7579178
Author:    mullan
Date:      2011-04-21 15:51 -0400
URL:       http://hg.openjdk.java.net/jigsaw/jigsaw/jdk/rev/0786e7579178

Generate signed module files in two passes.
Reviewed-by: alanb

! src/share/classes/org/openjdk/jigsaw/ModuleFileFormat.java
! src/share/classes/org/openjdk/jigsaw/cli/Packager.java