Fix update_db shell script.
Fix update_db shell script.

* The shell script should be replaced by an all-python script.

bankonme/OpenBazaar,rllola/OpenBazaar,saltduck/OpenBazaar,saltduck/OpenBazaar,atsuyim/OpenBazaar,mirrax/OpenBazaar,tortxof/OpenBazaar,habibmasuro/OpenBazaar,dionyziz/OpenBazaar,akhavr/OpenBazaar,rllola/OpenBazaar,akhavr/OpenBazaar,Renelvon/OpenBazaar,habibmasuro/OpenBazaar,bankonme/OpenBazaar,NolanZhao/OpenBazaar,im0rtel/OpenBazaar,NolanZhao/OpenBazaar,must-/OpenBazaar,tortxof/OpenBazaar,matiasbastos/OpenBazaar,must-/OpenBazaar,bglassy/OpenBazaar,saltduck/OpenBazaar,habibmasuro/OpenBazaar,bglassy/OpenBazaar,im0rtel/OpenBazaar,blakejakopovic/OpenBazaar,freebazaar/FreeBazaar,habibmasuro/OpenBazaar,blakejakopovic/OpenBazaar,tortxof/OpenBazaar,blakejakopovic/OpenBazaar,freebazaar/FreeBazaar,NolanZhao/OpenBazaar,matiasbastos/OpenBazaar,rllola/OpenBazaar,freebazaar/FreeBazaar,freebazaar/FreeBazaar,bankonme/OpenBazaar,saltduck/OpenBazaar,im0rtel/OpenBazaar,mirrax/OpenBazaar,tortxof/OpenBazaar,matiasbastos/OpenBazaar,bankonme/OpenBazaar,NolanZhao/OpenBazaar,atsuyim/OpenBazaar,dionyziz/OpenBazaar,atsuyim/OpenBazaar,blakejakopovic/OpenBazaar,bglassy/OpenBazaar,akhavr/OpenBazaar,must-/OpenBazaar,dionyziz/OpenBazaar,mirrax/OpenBazaar,Renelvon/OpenBazaar,akhavr/OpenBazaar,matiasbastos/OpenBazaar,atsuyim/OpenBazaar,must-/OpenBazaar,Renelvon/OpenBazaar,im0rtel/OpenBazaar,dionyziz/OpenBazaar,bglassy/OpenBazaar,Renelvon/OpenBazaar,freebazaar/FreeBazaar,dionyziz/OpenBazaar,mirrax/OpenBazaar,akhavr/OpenBazaar,rllola/OpenBazaar