Added note to docs/model-api.txt that EmailField has automatic maxlength=75
Added note to docs/model-api.txt that EmailField has automatic maxlength=75

--HG--
extra : convert_revision : svn%3Abcc190cf-cafb-0310-a4f2-bffc1f526a37/django/trunk%403910

adieu/django-nonrel,adieu/django-nonrel,adieu/django-nonrel