First import
Avoid double // in the beginning of the lfn
use setdefaults() instead of checking keys
Do not use glogger
updated
use setdefault
Dropped unnecessary extra KEY on RepID
New implementation of the updateDirectoryUsage; updated
checkExistingMetadata()
Cleanup
Check for duplicates in __addSE()
new getPathIDsByID() implementation
Unique index (FileID,SEID) in FC_Replicas, removed redundant index
Cleanup
Extra check for duplicates while inserting new users and groups
more explicit code
Use __getNumericPath as appropriate
Removed duplicated code
Removed old versions of code
Removed debug printout
Merge pull request #1612 from atsareg/dev_fc

DFC optimization