[Plugin: Ultimate TinyMCE] shortcodes selector not working with customized installation paths

I get an error when my browsers requests:
/wp-content/plugins/ultimate-tinymce/shortcodes-editor-selector/editor_plugin.js.php?ver=345-20111127

Warning: require_once(../../../../wp-load.php): failed to open stream: No such file or directory in /srv/codemat/web/wp-content/plugins/ultimate-tinymce/shortcodes-editor-selector/editor_plugin.js.php on line 2

Fatal error: require_once(): Failed opening required '../../../../wp-load.php' (include_path='.:/usr/share/php:/usr/share/pear') in /srv/codemat/web/wp-content/plugins/ultimate-tinymce/shortcodes-editor-selector/editor_plugin.js.php on line 2

This is because my WordPress installation has the WP_CONTENT_DIR setting set to a directory (/srv/codemat/web/wp-content/) that is not one level below the main wordpress directory (/usr/share/wordpress). So assuming that “../../../..” will bring you to the wordpress directory is wrong.

http://wordpress.org/extend/plugins/ultimate-tinymce/