Godeps: update docker-cluster, go-dockerclient and gandalf/testing
Godeps: update docker-cluster, go-dockerclient and gandalf/testing

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