SAK-27919 do not post assignment attachment to schedule item

git-svn-id: https://source.sakaiproject.org/svn/assignment/trunk@313777 66ffb92e-73f9-0310-93c1-f5514f145a0a
SAK-27921 - Seeing the CONSTRUCTOR - Exception reading logs : java.lang.NumberFormatException


git-svn-id: https://source.sakaiproject.org/svn/assignment/trunk@313778 66ffb92e-73f9-0310-93c1-f5514f145a0a