No need to copy it here anymore.

Change-Id: Ie636149e0ed71bbc5c6675c4e1481d62c66ab68e
Some renaming.  The name "old indices" is not very representative.

Change-Id: Idbb462e3b366d6fcc3fbbade6ee1310b9941423d
Implement reorder by column.  Now undo of column sorting is working too.

Change-Id: I2b98610f6b774400ecfaffe2905201c27fcab33f