Switch to side-by-side view

--- a/requirements-common.txt
+++ b/requirements-common.txt
@@ -21,7 +21,6 @@
 iso8601==0.1.4
 Jinja2==2.6
 Markdown==2.2.0
-mercurial==1.4.3
 Ming==0.3.5dev-20130522
 oauth2==1.5.170
 # tg2 dep PasteDeploy must specified before TurboGears2, to avoid a version/allow-hosts problem