Merge pull request #955 from wking/go-1.10

Documentation/development: Bump minimum Go version to 1.10

Author: ericchiang

.travis.yml

@@ -4,7 +4,6 @@ before_script:
   - unzip terraform_0.11.3_linux_amd64.zip
   - export PATH=$PWD:$PATH
 go:
-  - 1.9.x
   - 1.10.x
 script:
   - make clean release

Documentation/development.md

@@ -2,7 +2,7 @@
 
 ## Requirements
 
-* Go 1.8+
+* Go 1.10+
 * Configured [GOPATH](http://golang.org/doc/code.html#GOPATH)
 
 ## Building
@@ -14,7 +14,7 @@ go get -u github.com/kubernetes-incubator/bootkube
 cd $GOPATH/src/github.com/kubernetes-incubator/bootkube
 ```
 
-Then, to build (only Go verson 1.8 is supported now):
+Then build:
 
 ```
 make clean all