Closes #135: Help cygwin users convert pathnames to lisp

* slime.el (slime-init-command): Use `slime-to-lisp-filename'.

ChangeLog

+2014-03-28  João Távora  <joaotavora@gmail.com>
+
+	* slime.el (slime-init-command): Use `slime-to-lisp-filename'. 
+
 2014-03-27  João Távora  <joaotavora@gmail.com>
 	Previous changes broke compilation for definitions in buffers that

slime.el

@@ -1239,7 +1239,7 @@ See `slime-start'."
     ;; Return a single form to avoid problems with buffered input.
     (format "%S\n\n"
             `(progn
-               (load ,(expand-file-name loader)
+               (load ,(slime-to-lisp-filename (expand-file-name loader))
                      :verbose t)
                (funcall (read-from-string "swank-loader:init"))
                (funcall (read-from-string "swank:start-server")