Update to Go 1.9.7 and Go 1.10.3

for Travis CI, Docker and Snap

.travis.yml

@@ -4,8 +4,8 @@ dist: trusty
 git:
   depth: false
 go:
-  - 1.9.5
-  - "1.10.1"
+  - 1.9.7
+  - "1.10.3"
   - tip
 os:
   - linux

Dockerfile

@@ -2,7 +2,7 @@
 # Twitter:      https://twitter.com/gohugoio
 # Website:      https://gohugo.io/
 
-FROM golang:1.10.0-alpine3.7 AS build
+FROM golang:1.10.3-alpine3.7 AS build
 
 ENV CGO_ENABLED=0
 ENV GOOS=linux

snapcraft.yaml

@@ -43,4 +43,4 @@ parts:
       mv hugo-completion $SNAPCRAFT_PART_INSTALL/hugo-completion
     after: [go]
   go:
-    source-tag: go1.10.1
+    source-tag: go1.10.3