Keep UserPermission list without myself

Signed-off-by: Nico Rutishauser <nr@hotmail.ch>
Add sender to the UserProfileTask

Signed-off-by: Nico Rutishauser <nr@hotmail.ch>
Valudation of Read-only at receiver

Signed-off-by: Nico Rutishauser <nr@hotmail.ch>
Improve the share test (remove sleep)

Signed-off-by: Nico Rutishauser <nr@hotmail.ch>
Add verification at receiver at file operation with read-only

Signed-off-by: Nico Rutishauser <nr@hotmail.ch>