trend/dev: links for abjad-ext-ipython

root/pypi abjad-ext-ipython-3.3.tar.gz
root/pypi abjad-ext-ipython-3.0.0.tar.gz
root/pypi abjad-ext-ipython-3.0.0a1.tar.gz
root/pypi abjad-ext-ipython-3.0.0a0.tar.gz