Fix travis-ci status image url

README.md

@@ -2,7 +2,7 @@ Roundcube Webmail
 =================
 [roundcube.net](https://roundcube.net)
 
-[![Build Status](https://travis-ci.org/roundcube/roundcubemail.svg?branch=travis)](https://travis-ci.org/roundcube/roundcubemail)
+[![Build Status](https://api.travis-ci.org/roundcube/roundcubemail.svg?branch=master)](https://travis-ci.org/roundcube/roundcubemail)
 
 ATTENTION
 ---------
@@ -99,4 +99,4 @@ hello(at)roundcube(dot)net
 [license]:      https://roundcube.net/license
 [contrib]:      https://roundcube.net/contribute
 [support]:      https://roundcube.net/support
-[githubissues]: https://github.com/roundcube/roundcubemail/issues
+[githubissues]: https://github.com/roundcube/roundcubemail/issues