Removed unimplemented allow_letters option from USPhoneNumberField
Removed unimplemented allow_letters option from USPhoneNumberField

git-svn-id: 4f9f921b081c523744c7bf24d959a0db39629563@4555 bcc190cf-cafb-0310-a4f2-bffc1f526a37

Smarsh/django,Smarsh/django,mitsuhiko/django,jamespacileo/django-france,disqus/django-old,django-nonrel/django-nonrel,skevy/django,skevy/django,bfirsh/django-old,t11e/django,jamespacileo/django-france,disqus/django-old,sam-tsai/django-old,alex/django-old,dcramer/django-compositepks,dcramer/django-compositepks,skevy/django,hugs/django,sam-tsai/django-old,dcramer/django-compositepks,hugs/django,Smarsh/django,Smarsh/django,sam-tsai/django-old,hugs/django,sam-tsai/django-old,jamespacileo/django-france,django-nonrel/django-nonrel,mitsuhiko/django,bfirsh/django-old,t11e/django,Instagram/django,Instagram/django,bfirsh/django-old,disqus/django-old,t11e/django,alex/django-old,Instagram/django,mitsuhiko/django,django-nonrel/django-nonrel,alex/django-old