changing jsch version to 0.1.42. Previous version was not good enough to compile and different from version from "library.properties"

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@899758 13f79535-47bb-0310-9956-ffa450edef68

docs/manual/install.html

@@ -912,7 +912,7 @@ Already included Java 1.4+</td>
     target="_top">http://xml.apache.org/commons/</a>.</td>
   </tr>
   <tr>
-    <td>jsch.jar <b>0.1.29 or later</b></td>
+    <td>jsch.jar <b>0.1.42 or later</b></td>
     <td>sshexec and scp tasks</td>
     <td><a href="http://www.jcraft.com/jsch/index.html"
         target="_top">http://www.jcraft.com/jsch/index.html</a></td>