Little code and dependencies improvement in configure.sh
Little code and dependencies improvement in configure.sh

 The package 'build-essential' depends on the package 'gcc' and 'g++'.
bankonme/OpenBazaar,saltduck/OpenBazaar,saltduck/OpenBazaar,rllola/OpenBazaar,habibmasuro/OpenBazaar,im0rtel/OpenBazaar,bglassy/OpenBazaar,matiasbastos/OpenBazaar,bglassy/OpenBazaar,NolanZhao/OpenBazaar,dionyziz/OpenBazaar,mirrax/OpenBazaar,tortxof/OpenBazaar,tortxof/OpenBazaar,rllola/OpenBazaar,dionyziz/OpenBazaar,blakejakopovic/OpenBazaar,freebazaar/FreeBazaar,NolanZhao/OpenBazaar,atsuyim/OpenBazaar,habibmasuro/OpenBazaar,habibmasuro/OpenBazaar,akhavr/OpenBazaar,im0rtel/OpenBazaar,mirrax/OpenBazaar,tortxof/OpenBazaar,saltduck/OpenBazaar,tortxof/OpenBazaar,blakejakopovic/OpenBazaar,atsuyim/OpenBazaar,bankonme/OpenBazaar,Renelvon/OpenBazaar,rllola/OpenBazaar,atsuyim/OpenBazaar,dionyziz/OpenBazaar,bglassy/OpenBazaar,mirrax/OpenBazaar,matiasbastos/OpenBazaar,bglassy/OpenBazaar,saltduck/OpenBazaar,freebazaar/FreeBazaar,must-/OpenBazaar,dionyziz/OpenBazaar,freebazaar/FreeBazaar,im0rtel/OpenBazaar,akhavr/OpenBazaar,NolanZhao/OpenBazaar,blakejakopovic/OpenBazaar,akhavr/OpenBazaar,bankonme/OpenBazaar,matiasbastos/OpenBazaar,Renelvon/OpenBazaar,Renelvon/OpenBazaar,must-/OpenBazaar,bankonme/OpenBazaar,freebazaar/FreeBazaar,akhavr/OpenBazaar,Renelvon/OpenBazaar,habibmasuro/OpenBazaar,must-/OpenBazaar,must-/OpenBazaar,akhavr/OpenBazaar,mirrax/OpenBazaar,freebazaar/FreeBazaar,rllola/OpenBazaar,NolanZhao/OpenBazaar,im0rtel/OpenBazaar,matiasbastos/OpenBazaar,blakejakopovic/OpenBazaar,dionyziz/OpenBazaar,atsuyim/OpenBazaar