I had an iphone 6 and just got a 7.  Before the folders being backed up were just "102Apple" and "103Apple".  Now I see on the new phone and latest sync I have over 100 folders. The original 102Apple and 103Apple but 100 plus folders with a single image in each named "group3", "group17", "group55", etc.  just a bunch of random named folders with one image each.     This is bad because now on desktop when using picasa I have 100's of folders cluttering things up when all I needed was th