router/vulcand: use different etcd key in generic tests
router/vulcand: use different etcd key in generic tests

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