Added the following unit-test for the temporary hack:

  SchedulerTest.archive_report_and_retrieve_new_dual_copy_file

Simplified the code of the temporary fix.

Added '- cta/CTA#777 Minimize mounts for dual copy tape pool recalls - Temporary fix' to ReleaseNotes.md

This reverts commit 1d31d166.

A temporary fix that tries to force recalls to use the
tape copies with the lowest tape copy numbers.

Writing the disk replica will fail if the checksum of the file read
from tape does not match the checksum in the CTA catalogue.

this fixes #982 where files with fid >4294967295 were not considered for
garbage collection.

files with fxid coded on 8 or 9 characters in hexadecimal should be considered for GC (8 is not enough).

This reverts commit 6bbd0afa.

It is too dangerous to not pin the version rados to exact version.

Removed Oracle library syntax from the manualk pages of cta-mediachanger-dismount and cta-mediachanger-mount