misc/proxy-setup.bash: changing proxy variable names on read
misc/proxy-setup.bash: changing proxy variable names on read

Also exporting http_proxy and https_proxy environment variables after
reading their values.

guilhermebr/tsuru,cezarsa/tsuru,mderaldo/tsuru,4eek/tsuru,firebitsbr/tsuru,tsuru/tsuru,tuxmonteiro/tsuru,ArxdSilva/tsuru,hcxiong/tsuru,Endika/tsuru,jblancett/tsuru,kgrvamsi/tsuru,gwmoura/tsuru,jblancett/tsuru,firebitsbr/tsuru,gwmoura/tsuru,mderaldo/tsuru,cgvarela/tsuru,ArxdSilva/tsuru,tsuru/tsuru,tuxmonteiro/tsuru,jblancett/tsuru,RichardKnop/tsuru,tuxmonteiro/tsuru,ArxdSilva/tsuru,gwmoura/tsuru,guilhermebr/tsuru,ggarnier/tsuru,RichardKnop/tsuru,firebitsbr/tsuru,cezarsa/tsuru,kgrvamsi/tsuru,kgrvamsi/tsuru,cezarsa/tsuru,cezarsa/tsuru,hugoantunes/tsuru,4eek/tsuru,tsuru/tsuru,4eek/tsuru,guilhermebr/tsuru,cgvarela/tsuru,gciotta/tsuru,ggarnier/tsuru,cgvarela/tsuru,mderaldo/tsuru,Endika/tsuru,Endika/tsuru,ggarnier/tsuru,gciotta/tsuru,hugoantunes/tsuru,hcxiong/tsuru,gciotta/tsuru,hcxiong/tsuru,guilhermebr/tsuru,RichardKnop/tsuru,ArxdSilva/tsuru,ggarnier/tsuru,tsuru/tsuru