Reuse the unzip(File) method in Item Import
Rename ItemImport methods to indicate which version it is
merge two different methods that handle UI requests for batch import + enhance unzip method
Merge pull request #3 from EKT/itemimport-cleanup

Some ItemImport clean up
Merge pull request #741 from peterdietz/itemimport-cleanup

DS-2204 Consolidate/Clean Batch Import UI code