Re-add files needed for interactively creating otre_agent.jar
diff --git a/plugins/org.eclipse.objectteams.otre/MANIFEST.MF b/plugins/org.eclipse.objectteams.otre/MANIFEST.MF
new file mode 100644
index 0000000..6948c2a
--- /dev/null
+++ b/plugins/org.eclipse.objectteams.otre/MANIFEST.MF
@@ -0,0 +1,5 @@
+Manifest-Version: 1.0

+Premain-Class: org.eclipse.objectteams.otre.transformer.jplis.otreAgent

+Can-Redefine-Classes: true

+

+