Old SRPM is now cleaned up.
We automatically fetch all existing repos from the docker tree.
Fixed package version.

The disk system is now vetoed for the duration of a mount if we fail to reserve free space.

Moved the space reservation information to the DriveStatus object store object instead of a new central registry.
The central registry would have been a single point of contention as was the DriveRegistry before being split into
DriveStates. As the problem is so close to the one of the drive status, we can actually reuse the drive status for this purpose.

The algorithm will also change as we move the responsibility of querying the free space from the disk systems into the OStoreDb
object instead of the Scheduler. This leads to a slightly worth layering of responsibilities, making the OStoreDb::RetrieveMount
object a client of the disk::DiskSystemFreeSpaceList object.

The current implementation will also query the free space from the disk systems on each pop, instead of doing so in a globally
cached fashion. With the new model, we could cache the free space per drive (if needed), but not globally. This is not expected
to be a real issue and free space is a global counter in the disk system, expected to be readily available.

command.

Implement cta-admin disksystem ch command.

Implement methods to modify values for FILE_REGEXP, FREE_SPACE_QUERY_URL, REFRESH_INTERVAL, TARGETED_FREE_SPACE, USER_COMMENT

Implement cta-admin disksystem add/ls/rm commands.

Implement catalogue createDiskSystem,
getAllDiskSystems, deleteDiskSystem methods.

The implemantation currently returns an empty disk system.

cta-fst-gc now logs an error if it cannot list the contents of an FST filesystem or if determine the filesystem's sub directories

ctafstgcd.py no longer logs an ERROR when it fails to stat() a file that has been deleted by the FST