router: adds more buckets to router request durations
router: adds more buckets to router request durations

ggarnier/tsuru,cezarsa/tsuru,tsuru/tsuru,ArxdSilva/tsuru,cezarsa/tsuru,ArxdSilva/tsuru,guilhermebr/tsuru,cezarsa/tsuru,cezarsa/tsuru,guilhermebr/tsuru,ggarnier/tsuru,ggarnier/tsuru,tsuru/tsuru,ArxdSilva/tsuru,tsuru/tsuru,guilhermebr/tsuru,guilhermebr/tsuru,tsuru/tsuru,ggarnier/tsuru,ArxdSilva/tsuru