itweak_upload 6.x-2.6

#917270: iTweak Upload breaks Comment Driven by iva2k: Fix $form['#node']->type for comment_driven
#706454: Filefield paths by rbrandon: Fix-ahead for file path on new nodes when filefield_paths will change it after submit
[NOISSUE] by iva2k: Updated Readme and Rearranged Insert sub-section of Attachments configuration form for readability
[NOISSUE] by iva2k: Fixed description add-on not showing on custom class in Insert sub-section of content types
#1253692: Add a hook for other modules to alter attachment links by smokris: Add a hook for other modules to alter attachment links
[NOISSUE] by iva2k: Finished Insert feature preview of presets (no example image file copy to /default/files needed)
#1293338: Toggling attachment description visibility by iva2k: Added show_attachments_description setting
#1320946: I tweak adds empty table elements when it can't find rows to theme by rbrandon: Fix empty table elements when no rows to theme
[NOISSUE] by iva2k: Added "Login or register to view attached files" for anonymous users