Edit accom

- changed file input from 5 several input fields to 1 that allows
multiple selection
- success indicator for add/edit of accom
- improved attachment checking logic: uses is_upload_file function
- new function: get_accom_details, returns accom details and attachment
- every click of “add attachment” resets the modal
- more success indicators in update user details: checks for
unnecessary update
- improved ajax.js
- uniform PROFILE*
- improved faculty_info toggle with required
- commented out parts of unlink_accom that deletes attachments