MAINT: Makefile add debugging output

Makefile

@@ -112,6 +112,8 @@ keep-test-server: test
 	$(MISC_DIR)/unit_test_http_server.py $(TEST_PORT) -1 True $(PUBLIC_DIR)
 
 run-qunit: test
+	ls -la $(PUBLIC_DIR)/js
+
 	$(foreach exec, firefox Xvfb xwd,\
 	    $(if $(shell which $(exec)),echo "found $(exec)",$(error "No $(exec) in PATH")))