contrib/lisp/org-elisp-symbol: Set type if symbol is defuned but not fbound

Another small patch for org-elisp-symbol: Set the symbol type to
"Function or command" if it is defuned but not fbound when
`org-elisp-symbol-store-link' is called.

Best,
  -- David

contrib/lisp/org-elisp-symbol.el

@@ -106,6 +106,7 @@
 			  ((user-variable-p sym-name) "User variable")
 			  ((string= def "defvar") "Variable")
 			  ((string= def "defmacro") "Macro")
+			  ((string= def "defun") "Function or command")
 			  (t "Symbol")))
 	     (args (if (match-string 3)
 		       (mapconcat (lambda (a) (unless (string-match "^&" a) a))