upgrade election

Author: Yutong Pei

go.mod

@@ -18,7 +18,7 @@ require (
 	github.com/iotexproject/go-pkgs v0.1.2-0.20200212033110-8fa5cf96fc1b
 	github.com/iotexproject/iotex-address v0.2.1
 	github.com/iotexproject/iotex-antenna-go/v2 v2.3.2
-	github.com/iotexproject/iotex-election v0.2.17-0.20200424232423-683b3d35aa4b
+	github.com/iotexproject/iotex-election v0.2.18
 	github.com/iotexproject/iotex-proto v0.3.0
 	github.com/libp2p/go-libp2p v0.0.21 // indirect
 	github.com/libp2p/go-libp2p-peerstore v0.0.5

go.sum

@@ -163,8 +163,8 @@ github.com/iotexproject/iotex-address v0.2.1 h1:ZJH2ajx5OBrbaRJ0ZWlWUo685zr5kjWi
 github.com/iotexproject/iotex-address v0.2.1/go.mod h1:ONmTqmg6zO7VWF9TcWN+UrreFr/xpazlv9PWOALbLFA=
 github.com/iotexproject/iotex-antenna-go/v2 v2.3.2 h1:xCJa1QYV/f9cSF9z32fFmfTcGb8sYvn1No+uDlgwABA=
 github.com/iotexproject/iotex-antenna-go/v2 v2.3.2/go.mod h1:R6WIWVfZAnpSo8llzEsSoGJgHSYeYamjBqG35oHpgxU=
-github.com/iotexproject/iotex-election v0.2.17-0.20200424232423-683b3d35aa4b h1:EHrO7nE8ryh5X4a+V8LwG+UVoUC3rSB2f9lYVD5tJzA=
-github.com/iotexproject/iotex-election v0.2.17-0.20200424232423-683b3d35aa4b/go.mod h1:8GJZXtJeTaqOypPaQNzPWqCXEde4tU8fL00vsbvqEkw=
+github.com/iotexproject/iotex-election v0.2.18 h1:iOdq932iY/lvCby7F55qKs9PMXDHXsoVn+XRU0Gu/5I=
+github.com/iotexproject/iotex-election v0.2.18/go.mod h1:8GJZXtJeTaqOypPaQNzPWqCXEde4tU8fL00vsbvqEkw=
 github.com/iotexproject/iotex-proto v0.2.1-0.20190814190638-f74c55ffedf5/go.mod h1:962P5o0qlB5sqRT07TJBMX31i2u309kzDqqwCg+cGz0=
 github.com/iotexproject/iotex-proto v0.2.5 h1:SYdl9Lqb0LYfFf3sfw92fN8GY3bthfCvGmltz+2uvDQ=
 github.com/iotexproject/iotex-proto v0.2.5/go.mod h1:962P5o0qlB5sqRT07TJBMX31i2u309kzDqqwCg+cGz0=