Adding packaging on onos*.zip file.
Modified Version.java to allow 3-segment version.
Changed onos-next to onos as default for ONOS_ROOT.

Change-Id: Ifbde9dfbc7af9a5891e9f41db6932859c0f59660
diff --git a/tools/build/onos-package b/tools/build/onos-package
index 9bc8fd5..8bbb4b4 100755
--- a/tools/build/onos-package
+++ b/tools/build/onos-package
@@ -72,5 +72,6 @@
 # Now package up the ONOS tar file
 cd $ONOS_STAGE_ROOT
 COPYFILE_DISABLE=1 tar zcf $ONOS_TAR $ONOS_BITS
-ls -l $ONOS_TAR >&2
+which -s zip && zip -rq $ONOS_ZIP $ONOS_BITS
+ls -l $ONOS_TAR $ONOS_ZIP >&2
 rm -r $ONOS_STAGE