With Allison's recent changes to updating time/date adjustment, need to notify DataCollection observers of a  possible re-sort when this happens.
With Allison's recent changes to updating time/date adjustment, need to notify DataCollection observers of a 
possible re-sort when this happens.


jof/shotwell,polymeris/shotwell,ritchiewilson/shotwell,jof/shotwell,abrauchli/shotwell,abrauchli/shotwell,h4ck3rm1k3/shotwell,h4ck3rm1k3/shotwell,polymeris/shotwell,jof/shotwell,Sanva/shotwell-gsoc,jimbonator/shotwell,abrauchli/shotwell,polymeris/shotwell,damianmoore/shotwell,Sanva/shotwell-gsoc,jimbonator/shotwell,ritchiewilson/shotwell,ritchiewilson/shotwell,Sanva/shotwell-gsoc,damianmoore/shotwell,damianmoore/shotwell,jimbonator/shotwell,h4ck3rm1k3/shotwell