Add install-dev-toolsl to travis

.travis.yml

@@ -5,6 +5,7 @@ go:
 
 before_install:
   - go get github.com/mattn/goveralls
+  - make install-dev-tools
 
 script:
   - $HOME/gopath/bin/goveralls -service=travis-ci

Makefile

@@ -26,7 +26,7 @@ clean: ## remove binary files
 deps: ## list dependencies
 	go list -f '{{join .Imports "\n"}}' ./... | grep -v ${PACKAGE} | grep '\.' | sort | uniq
 
-setup: ## install dependencies and development tools
+install-dev-tools: ## install dependencies and development tools
 	go get -t ./...
 	go get github.com/alecthomas/gometalinter
 	go get golang.org/x/tools/cmd/stringer

README.md

@@ -71,7 +71,7 @@ This library is in its early days. IMO it's not sufficiently mature to be worth
 ### Setup
 
 ```bash
-make setup
+make install-dev-tools
 ```
 
 ### Workflow