update faq for required java versions

templates/faq.html

@@ -37,6 +37,14 @@ <h1>FAQ</h1>
     you can view it when you are prompted to accept the permissions, or check
     it from the Java control panel applet under security and certificate
     details.</dd>
+<dt>The applet is giving me an error?</dt>
+<dd>The applet requires a Sun-compatible Java version 1.6.0_10 or newer,
+    Java runtimes such as gcj or Harmony may not work correctly.  MacOS X
+    10.5 users have a compatible version of Java, but it is not enabled
+    as default.  You can change the default version of Java to use on OS X
+    in Applications -&gt; Utilities -&gt; Java Preferences.  OS X 10.6 has
+    a working 1.6 set as the default already.  Linux users will need to
+    manually install a Java plugin and compatible Java runtime.</dd>
 <dt>Why should I login?</dt>
 <dd>There are many positive reasons for logging in.  When you login, your
     captured images are not displayed on the home page for everyone to see.