Include bio image data in request data in edit()
Move bio form code into element
Add instructor bio and picture sections
Ignore bio section if user is not an instructor in admin_add()
Pass uploaded image filename to view in admin_add()
Revert "Pass uploaded image filename to view in admin_add()"

This reverts commit ee7257dffe28b5b201f4af7123b13001152c8fd0.
Revert "Add instructor bio and picture sections"

This reverts commit 86348a78f0965b2eaf11b4f6dbc03d8dce6dd28d.
Revert "Ignore bio section if user is not an instructor in admin_add()"

This reverts commit ff24c96d3c896098fcdb6a2d3983f28e0ffa9532.
Pass $instructor_id to views that use bios/form element
Add instructor_id to parameters for JS method bioForm.setupUpload()
Pass instructor_id through $_POST in bioForm.setupUpload()
Use $_POST['instructor_id'] instead of Auth::user('id')
Base filename on user_id instead of bio_id

Since a bio hasn't necessarily been created yet when an image is
uploaded
Fix how afterSave() updates Bio when BioImage is uploaded
Fix how old images are deleted in afterSave()
Delete any records for images a user previously uploaded
Merge branch 'development'