FIX: Restore TransformationSystem Catalog functionnality

Recuperate from the TransformationClient.py the functions for the
catalog.
CHANGE: Remove new client and will look in TS to fix the FC interface
FIX: Common interface to the FileCatalog
FIX the addReplica for interface
FIX: the addReplica
FIX: The rest of the FC interface

I'm not too proud of the removeReplica method in the
TransformationClient...
FIX: a bug
CHANGE: Make better docstrings
CHANGE: Report the successful properly
CHANGE: Remove ALL Replica related stuff as this FC is only about files,
not about replicas
CHANGE: Continue removing Replica related stuff
CHANGE: More Replica removal stuff
FIX __insertIntoExistingTransformationFiles
CHANGE: restore the Replica stuff, will be dropped in a later release
CHANGE: Restore the Replica info
Merge pull request #1680 from sposs/TSCatalogRestore

FIX: Restore TransformationSystem Catalog functionnality
Merge pull request #1681 from fstagni/fixTS__insert

[v6r9] FIX __insertIntoExistingTransformationFiles
v6r9p21
Conflicts resolved with rel-v6r9