travis: do not install dotcloud/tar
travis: do not install dotcloud/tar

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