move signzone function into the command line tool; clean up some; add local _jdnssec-* shell wrappers

git-svn-id: https://svn.verisignlabs.com/jdnssec/tools/trunk@17 4cbd57fe-54e5-0310-bd9a-f30fe5ea5e6e

bin/_jdnssec-keygen

@@ -0,0 +1,16 @@
+#! /bin/sh
+
+thisdir=`dirname $0`
+basedir=`cd $thisdir/..; pwd`
+
+ulimit -n `ulimit -H -n`
+
+# set the classpath
+CLASSPATH=$CLASSPATH:$basedir/build/classes
+
+for i in $basedir/lib/*.jar $basedir/lib/*.zip; do
+  CLASSPATH="$CLASSPATH":"$i"
+done
+export CLASSPATH
+
+exec java com.verisignlabs.dnssec.cl.KeyGen "$@"