alerted  by a warning let's avoid duplicate packaging into . and otdtuihelp.jar.
Also add the reference/ folder to be populated during build.
diff --git a/plugins/org.eclipse.objectteams.otdt.ui.help/META-INF/MANIFEST.MF b/plugins/org.eclipse.objectteams.otdt.ui.help/META-INF/MANIFEST.MF
index 4daf6f4..c8c47a2 100644
--- a/plugins/org.eclipse.objectteams.otdt.ui.help/META-INF/MANIFEST.MF
+++ b/plugins/org.eclipse.objectteams.otdt.ui.help/META-INF/MANIFEST.MF
@@ -25,4 +25,4 @@
  org.eclipse.objectteams.otequinox
 Bundle-RequiredExecutionEnvironment: J2SE-1.5
 Bundle-ActivationPolicy: lazy
-Bundle-Classpath: otdtuihelp.jar
+Bundle-Classpath: .
diff --git a/plugins/org.eclipse.objectteams.otdt.ui.help/build.properties b/plugins/org.eclipse.objectteams.otdt.ui.help/build.properties
index a94adcc..f85821a 100644
--- a/plugins/org.eclipse.objectteams.otdt.ui.help/build.properties
+++ b/plugins/org.eclipse.objectteams.otdt.ui.help/build.properties
@@ -32,11 +32,8 @@
                intro/,\
                plugin.properties,\
                ot.html,\
-               otdtuihelp.jar,\
                reference/,\
                book.css,\
                schema.css,\
                about.html
-jars.compile.order = otdtuihelp.jar
-source.otdtuihelp.jar = src/
-output.otdtuihelp.jar = bin/
+