Change extension setup() return value to a dictionary of metadata.

This makes it possible to introduce more metadata values later.

1 files changed, 1 insertions, 1 deletions

diff --git a/sphinx/ext/jsmath.py b/sphinx/ext/jsmath.py
index 897d87acb..765dfb33e 100644
--- a/sphinx/ext/jsmath.py
+++ b/sphinx/ext/jsmath.py
@@ -57,4 +57,4 @@ def setup(app):
     mathbase_setup(app, (html_visit_math, None), (html_visit_displaymath, None))
     app.add_config_value('jsmath_path', '', False)
     app.connect('builder-inited', builder_inited)
-    return sphinx.__version__
+    return {'version': sphinx.__version__}