#3868: Set book_image_cover to use media field.
#3868: Change software release file field to media
Replace in csv file the \r infavor of \n.
Check if the file is accessible and convert \r to \n.
Fix TODO.
Replace the old file with the new file we processed and delete the old.
Delte the file after the import was done and bring back the comment.
Adding location and event registratoin to the event CSV mapping.
Adding the callback function and add two events for exmaple.
Merge branch 'SCHOLAR-3.x' into 3868-reexported_fields
#3868: Remove og fields from export.
standardize user-facing text case #4286
standardize unused widget template file #4286
remove duplicated help link from CP > Layout #4286
move tour from form_alter() to process_page() #4286
layout and position for CP > Layout with absolute help #4286
activate tour on all CP pages (not just full section) #4286
WIP style changes to reduce clutter on CP > Menu #3344
Add colorbox group
Fix comments