Replace accidentally removed debuglevel flag
diff --git a/antbuild.xml b/antbuild.xml
index 3cf01ed..9b731c5 100644
--- a/antbuild.xml
+++ b/antbuild.xml
@@ -167,7 +167,7 @@
                destdir="${classes.dir}"
                includes="**"
                debug="${javac.debug}"
-
+               debuglevel="${javac.debuglevel}"
                encoding="UTF-8"
                optimize="${javac.optimize}"
                source="${javac.version}"