[PyMOL] install_plugin(s)

[Charles Moad]

The pymol-0_98-src.tgz download seems to have the following typo:

cm...@euclid ~ $ grep -r 'install_plugin' pymol-0.98/
pymol-0.98/modules/pmg_tk/skins/normal/__init__.py:   def
install_plugins(self):
pymol-0.98/modules/pmg_tk/skins/normal/__init__.py:
          command = lambda s=self: s.install_plugin())

plugins != plugin, hence there is an AttrError raised.

Thanks,
        Charlie