Add additional access check to List my tasks for mentors.
Add additional access check to List my tasks for mentors.

This change also brings around changes in the names of
the variables and imports used to be more aligned with
the rest of the code in the function.

SRabbelier/Melange,SRabbelier/Melange,SRabbelier/Melange,SRabbelier/Melange,SRabbelier/Melange,SRabbelier/Melange,SRabbelier/Melange,SRabbelier/Melange,SRabbelier/Melange