Modernise travis

Author: hadley

.travis.yml

@@ -1,20 +1,11 @@
-language: c
+# R for travis: see documentation at https://docs.travis-ci.com/user/languages/r
 
-before_install:
-  - curl -OL http://raw.github.com/craigcitro/r-travis/master/scripts/travis-tool.sh
-  - chmod 755 ./travis-tool.sh
-  - ./travis-tool.sh bootstrap
-install:
-  - ./travis-tool.sh r_binary_install knitr
-  - ./travis-tool.sh r_binary_install testthat
-
-script: ./travis-tool.sh run_tests
-
-after_failure:
-  - ./travis-tool.sh dump_logs
-
-notifications:
-  email:
-    on_success: change
-    on_failure: change
+language: R
+sudo: false
+cache: packages
 
+r:
+- 3.1
+- oldrel
+- release
+- devel

README.md

@@ -5,7 +5,7 @@
 magrittr -  Ceci n'est pas un pipe.
 ====================================
 
-[![Build Status](https://travis-ci.org/tidyverse/magrittr.png?branch=dev)](https://travis-ci.org/tidyverse/magrittr)
+[![Travis-CI Build Status](https://travis-ci.org/tidyverse/magrittr.svg?branch=master)](https://travis-ci.org/tidyverse/magrittr)
 
 # Introduction