Update client version number again...

www/software.php3

@@ -18,7 +18,7 @@ PAGEHEADER("Emulab Software Distributions");
 <ul>
 <li> <img src="/new.gif" alt="&lt;NEW&gt;">
      <a href="/downloads/netlab-client.jar">
-     Emulab GUI Client JAR v0.1.0a</a>.
+     Emulab GUI Client JAR v0.1.0b</a>.
      This is the initial release of a new GUI client for creating and
      interacting with experiments.  The GUI provides an alternative to using
      the web-based interface or logging into users.emulab.net and using the