It's misleading to display build status for whatever random branch Travis built last.

Julian · Julian · commit 1a3203b65679 · 2015-03-15T14:52:59.000-04:00
diff --git a/README.rst b/README.rst
@@ -1,4 +1,4 @@
-.. image:: https://travis-ci.org/Julian/jsonschema.svg
+.. image:: https://travis-ci.org/Julian/jsonschema.svg?branch=master
 ==========
 jsonschema
 ==========

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-.. image:: https://travis-ci.org/Julian/jsonschema.svg`
	`1`	`+.. image:: https://travis-ci.org/Julian/jsonschema.svg?branch=master`
`2`	`2`	`==========`
`3`	`3`	`jsonschema`
`4`	`4`	`==========`