Upload PDF dialog, Browse button does not appear when PDF Name is entered

Teacher tools fix (JavaScript was broken there once the user was accessing the page)

Fixed adding outline elements after an image element was added

When student is adding a class to his account, projects from that class would not save the elements

Finished the migration that removes the duplicates from outline elements table and all the data associated with those duplicates

Fixed the Print view project page

Fix save project after first attempt with error