Fix typos in setup.py
Fix typos in setup.py

couple of typos in setup.py throwing errors when installing from pypi:

/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/distutils/dist.py:267: UserWarning: Unknown distribution option: 'mainteiner_email'
      warnings.warn(msg)
    /opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/distutils/dist.py:267: UserWarning: Unknown distribution option: 'mainteiner'
chronossc/django-breadcrumbs,iris-edu-int/django-breadcrumbs,iris-edu/django-breadcrumbs,iris-edu-int/django-breadcrumbs,mehdipourfar/django-breadcrumbs,iris-edu/django-breadcrumbs,mehdipourfar/django-breadcrumbs,chronossc/django-breadcrumbs,iris-edu/django-breadcrumbs,chronossc/django-breadcrumbs,iris-edu-int/django-breadcrumbs,mehdipourfar/django-breadcrumbs