Switch to side-by-side view

--- a/requirements-common.txt
+++ b/requirements-common.txt
@@ -36,6 +36,7 @@
 python-dateutil==1.5
 python-magic==0.4.3
 python-openid==2.2.5
+python-oembed==0.2.1
 pytidylib==0.2.1
 # for taskd proc name switching
 setproctitle==1.1.7