diff -r d6b4e3b7c6c6 -r c6adf9d9e996 .travis.yml
--- a/.travis.yml	Mon May 01 12:25:43 2017 +0200
+++ b/.travis.yml	Mon May 01 12:42:37 2017 +0200
@@ -18,3 +18,4 @@
 - go get github.com/pkg/errors
 - go get github.com/jaytaylor/html2text
 - go get github.com/m0t0k1ch1/gomif
+- go get github.com/mattn/go-isatty