cmd/shell: support HTTPS
cmd/shell: support HTTPS

Fix #1148.

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