Fix build status badge [ci skip]

README.org

@@ -4,7 +4,7 @@
   that plays nicely with traditional UNIX logging tools like logrotate and
   syslog.
 
-  [[https://travis-ci.org/basho/lager][https://secure.travis-ci.org/basho/lager.png]]
+  [[http://travis-ci.org/basho/lager][Travis-CI]] :: [[https://secure.travis-ci.org/basho/lager.png]]
 
 * Features
     - Finer grained log levels (debug, info, notice, warning, error, critical,