Don't try to GET an object if the file already exists locally.  Log an error message instead of blindly overwriting it.  In the future, we can pop up a dialog asking the user if they'd like to skip/replace/etc.
Don't try to GET an object if the file already exists locally.  Log an
error message instead of blindly overwriting it.  In the future, we can
pop up a dialog asking the user if they'd like to skip/replace/etc.

Klopsch/ds3_browser,SpectraLogic/ds3_browser,SpectraLogic/ds3_browser,Klopsch/ds3_browser,SpectraLogic/ds3_browser,Klopsch/ds3_browser