finagle-mux: fix sbt deps
finagle-mux: fix sbt deps

RB_ID=837154

twitter/finagle,luciferous/finagle,BuoyantIO/finagle,twitter/finagle,koshelev/finagle,BuoyantIO/finagle,spockz/finagle,koshelev/finagle,sveinnfannar/finagle,spockz/finagle,sveinnfannar/finagle,BuoyantIO/finagle,sveinnfannar/finagle,koshelev/finagle,sveinnfannar/finagle,BuoyantIO/finagle,koshelev/finagle,spockz/finagle,koshelev/finagle,luciferous/finagle,twitter/finagle,adriancole/finagle,mkhq/finagle,twitter/finagle,mkhq/finagle,twitter/finagle,koshelev/finagle,sveinnfannar/finagle,sveinnfannar/finagle,adriancole/finagle,luciferous/finagle,spockz/finagle,adriancole/finagle,mkhq/finagle,luciferous/finagle,adriancole/finagle,spockz/finagle,mkhq/finagle,mkhq/finagle,luciferous/finagle,mkhq/finagle,adriancole/finagle,BuoyantIO/finagle,luciferous/finagle,spockz/finagle,adriancole/finagle,BuoyantIO/finagle