FIX: correct handling of replica cache for transformations with many
files
typo
improve logging
Avoid regexp
Fix a memory leak with cached replicas
Remove files from cache if they no longer are Unused in the
transformation
Fix __cleanReplicas
Fixed again removing items from cache
what a pain!
Merge pull request #2202 from phicharp/v6r12-FixTrans141210

[v6r12] correct handling of replica cache for transformations with many