update django-registration to 1.0 and python 3

PKGBUILD

# Contributor: Chaiwat Suttipongsakul <cwt at bashell dot com>
# Maintainer: Chris Down <chris@chrisdown.name>
# Contributor: Lubosz Sarnecki <lubosz@gmail.com>

pkgname=django-registration
pkgver=1.0
pkgrel=1
pkgdesc="A simple, generic user-registration application for Django"
arch=( any )
url="http://bitbucket.org/ubernostrum/django-registration"
license=('GPL')
depends=( python python-django )
source=("http://pypi.python.org/packages/source/d/django-registration/$pkgname-$pkgver.tar.gz")
sha256sums=('f19112fa1c1f34eb46427afa280398d9f044a604d68d6d0d15047243e0a71d93')

build() {
    cd "$srcdir/$pkgname-$pkgver"
    python setup.py build
}

package() {
    cd "$srcdir/$pkgname-$pkgver"
    python setup.py install --root="$pkgdir" --optimize=1
}