Instead of importing nose plugins, use the existing list of classes that  nose.plugins.builtins imports. If --with-doctest is included in extra_argv, remove it and use the NumPy doctester  instead.
Instead of importing nose plugins, use the existing list of classes that 
nose.plugins.builtins imports.
If --with-doctest is included in extra_argv, remove it and use the NumPy doctester 
instead.


git-svn-id: 77a43f9646713b91fea7788fad5dfbf67e151ece@5454 94b884b6-d6fd-0310-90d3-974f1d3f35e1

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