bichen: fixed demo.
bichen: fixed demo.

On branch master
Your branch is up-to-date with 'origin/master'.

Changes to be committed:
modified:   src/demo.py

BichenWuUCB/squeezeDet,BichenWuUCB/squeezeDet,fyhtea/squeezeDet-hand,getnexar/squeezeDet,goan15910/ConvDet,goan15910/ConvDet,BichenWuUCB/squeezeDet,goan15910/ConvDet,fyhtea/squeezeDet-hand