stagger/frames.py (PictureFrame): Don't die when imghdr doesn't recognise an old-style JPEG file.
stagger/frames.py (PictureFrame): Don't die when imghdr doesn't recognise an old-style JPEG file.

Reroot/stagger,manolomartinez/stagger,danielthesoto/stagger,Rose-Hawk/stagger,SpaWnAge/stagger,efth/stagger,radec94/stagger,penfold1992/stagger,deNULL/stagger,Rasor1911/stagger