1.6.8.1.1 released

1.6.8.1.1 contains the same content as 1.6.8.1, which is:
* Move the About menu to a specific menu in the GUI to make it more visible
* Use MDIUtilities 1.3.9.2
* Fix a StackTrace exception which would be thrown on the GUI when selecting the output directory by typing the directory on the file selector associated text field
* Fix cases where the wiki links in the editor would not work correctly if setting the input directories by typing the input directories on the file selector associated text field (if the path was relative)
This version is re-released (with a new tag) because the previous zip release was incorrect (some of the modifications were not in the jar files).