update to golang 1.10.2

.travis.yml

@@ -1,7 +1,7 @@
 sudo: required
 language: go
 go:
-- "1.10.1"
+- "1.10.2"
 go_import_path: v2ray.com/core
 git:
   depth: 5

release/release-ci.sh

@@ -25,7 +25,7 @@ echo ${SIGN_KEY_PASS} | gpg --passphrase-fd 0 --batch --import /v2ray/build/sign
 curl -L -o /v2ray/build/releases https://api.github.com/repos/v2ray/v2ray-core/releases
 
 GO_INSTALL=golang.tar.gz
-curl -L -o ${GO_INSTALL} https://storage.googleapis.com/golang/go1.10.1.linux-amd64.tar.gz
+curl -L -o ${GO_INSTALL} https://storage.googleapis.com/golang/go1.10.2.linux-amd64.tar.gz
 tar -C /usr/local -xzf ${GO_INSTALL}
 export PATH=$PATH:/usr/local/go/bin