Switch to side-by-side view

--- a/requirements-sf.txt
+++ b/requirements-sf.txt
@@ -29,7 +29,6 @@
 
 # development
 blessings==1.3
-ipython==0.11
 nose-progressive==1.3
 pyprof2calltree==1.1.0
 repoze.profile==1.3