PolyBoRi should depend on IPython

Imported from <a href="http://trac.sagemath.org/sage_trac/ticket/14026">trac #14026</a>.



Reported by: jdemeyer

Component: build

CC: vbraun

Report Upstream: N/A

Authors: Jeroen Demeyer

Dependencies: 

Work issues: 

Reviewers: Alexander Dreyer

Merged in: sage-5.9.beta1

Attachments: <ol><li><a href="http://trac.sagemath.org/sage_trac/attachment/ticket/14026/14026_polybori_deps.patch">14026_polybori_deps.patch: </a> by jdemeyer at 20130128T13:18:56</li></ol>