upgrade go chassis (#28)

diff --git a/go.mod b/go.mod
index e7146d6..f27ac74 100644
--- a/go.mod
+++ b/go.mod
@@ -8,7 +8,7 @@
 	github.com/go-chassis/go-archaius v0.0.0-20181108111652-ab19b4eae276
 
 	github.com/go-chassis/go-cc-client v0.0.0-20181102101915-dea430061a34
-	github.com/go-chassis/go-chassis v1.1.1-0.20181130101036-30c84e3f6f47
+	github.com/go-chassis/go-chassis v1.1.2-0.20181210100135-5e647f1a038b
 	github.com/go-chassis/gohessian v0.0.0-20180702061429-e5130c25af55
 	github.com/go-mesh/openlogging v0.0.0-20181122085847-3daf3ad8ed35
 	github.com/gogo/googleapis v1.1.0 // indirect