Ticket #3224 (mcedit hangs on 'Paste output of...')

fixed mcedit hangs on 'Paste output of...'

Signed-off-by: Ilia Maslakov <il.smind@gmail.com>
remove unnecessary menu item. Menu 'Sort' is no longer needed.

Signed-off-by: Ilia Maslakov <il.smind@gmail.com>