added missing copy statement

Author: dghgit

ant/bc+-build.xml

@@ -923,6 +923,7 @@
              <fileset dir="${src.dir}" includes="**/tsp/*UnitTest.java" />
              <fileset dir="${src.dir}" includes="**/utiltest/*Test.java" />
              <fileset dir="${src.dir}" includes="**/util/io/pem/*Test.java" />
+             <fileset dir="${src.dir}" includes="**/keybox/*Test.java" />
              <fileset dir="${src.dir}" includes="**/test/*.java" />
              <fileset dir="${src.dir}" includes="**/test/*/*.java" />
              <fileset dir="${src.dir}" includes="**/*.asc" />