Save and restore sys.displayhook around running tests, so that doctests can run correctly under IPython
Save and restore sys.displayhook around running tests, so that doctests can
run correctly under IPython


git-svn-id: 89d05d7b87d257b19585950f76a9d6e29854e44c@1400 94b884b6-d6fd-0310-90d3-974f1d3f35e1

teoliphant/numpy-refactor,teoliphant/numpy-refactor,Ademan/NumPy-GSoC,Ademan/NumPy-GSoC,jasonmccampbell/numpy-refactor-sprint,illume/numpy3k,illume/numpy3k,chadnetzer/numpy-gaurdro,teoliphant/numpy-refactor,efiring/numpy-work,Ademan/NumPy-GSoC,jasonmccampbell/numpy-refactor-sprint,illume/numpy3k,efiring/numpy-work,jasonmccampbell/numpy-refactor-sprint,illume/numpy3k,teoliphant/numpy-refactor,efiring/numpy-work,chadnetzer/numpy-gaurdro,chadnetzer/numpy-gaurdro,efiring/numpy-work,chadnetzer/numpy-gaurdro,teoliphant/numpy-refactor,jasonmccampbell/numpy-refactor-sprint,Ademan/NumPy-GSoC