ob-clojure: force escaping of clojure source into elisp source

* lisp/ob-clojure.el (org-babel-execute:clojure): Force escaping of
  clojure source into elisp source.

lisp/ob-clojure.el

@@ -78,7 +78,8 @@
   (require 'slime) (require 'swank-clojure)
   (with-temp-buffer
     (insert (org-babel-expand-body:clojure body params))
-    ((lambda (result) (condition-case nil (read (org-babel-script-escape result))
+    ((lambda (result) (condition-case nil
+		     (read (org-babel-script-escape result 'force))
 		   (error result)))
      (slime-eval
       `(swank:interactive-eval-region