Missing '/' in check for TinyMCE file compressor

In the tinymce_process_textarea() function (currently line 222), the fileexists test for tiny_mce_gzip.php omits to add an extra '/' following the $tinymce_mod_path concatenation. The file is never found and the non-compressed javascript files are always used. The line should probably be:

if (file_exists($tinymce_mod_path. '/tinymce/jscripts/tiny_mce/tiny_mce_gzip.php')) {