Update github.com/gocql/gocql commit hash to 59a610c (#27)

Signed-off-by: Renovate Bot <[email protected]>

go.mod

@@ -5,7 +5,7 @@ require (
 	github.com/bitly/go-hostpool v0.0.0-20171023180738-a3a6125de932 // indirect
 	github.com/bmizerany/assert v0.0.0-20160611221934-b7ed37b82869 // indirect
 	github.com/go-test/deep v1.0.1
-	github.com/gocql/gocql v0.0.0-20190402132108-0e1d5de854df
+	github.com/gocql/gocql v0.0.0-20190418092049-59a610c947c5
 	github.com/golang/protobuf v1.3.1 // indirect
 	github.com/golang/snappy v0.0.1 // indirect
 	github.com/kr/pretty v0.1.0 // indirect

go.sum

@@ -20,8 +20,8 @@ github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9
 github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
 github.com/go-test/deep v1.0.1 h1:UQhStjbkDClarlmv0am7OXXO4/GaPdCGiUiMTvi28sg=
 github.com/go-test/deep v1.0.1/go.mod h1:wGDj63lr65AM2AQyKZd/NYHGb0R+1RLqB8NKt3aSFNA=
-github.com/gocql/gocql v0.0.0-20190402132108-0e1d5de854df h1:fwXmhM0OqixzJDOGgTSyNH9eEDij9uGTXwsyWXvyR0A=
-github.com/gocql/gocql v0.0.0-20190402132108-0e1d5de854df/go.mod h1:4Fw1eo5iaEhDUs8XyuhSVCVy52Jq3L+/3GJgYkwc+/0=
+github.com/gocql/gocql v0.0.0-20190418092049-59a610c947c5 h1:FYrGAV/2iaGzqvdSxHBUi8XLwzieeIidORGOu/yP4LY=
+github.com/gocql/gocql v0.0.0-20190418092049-59a610c947c5/go.mod h1:4Fw1eo5iaEhDUs8XyuhSVCVy52Jq3L+/3GJgYkwc+/0=
 github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
 github.com/golang/protobuf v1.2.0 h1:P3YflyNX/ehuJFLhxviNdFxQPkGK5cDcApsge1SqnvM=
 github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=