Rewrite schema generation (#1)

* Completeley rewritten schema generation
* Added support for python 2.7 and 3.4
* Restructured testing and build configuration
* Added nested request schemas

This rewrite completely replaces the public interface of the django rest schema generation library, so 
further changes will be needed to re-enable and further extend the customization points one might want.

testproj/users/serializers.py

@@ -0,0 +1,12 @@
+from django.contrib.auth.models import User
+from rest_framework import serializers
+
+from snippets.models import Snippet
+
+
+class UserSerializer(serializers.ModelSerializer):
+    snippets = serializers.PrimaryKeyRelatedField(many=True, queryset=Snippet.objects.all())
+
+    class Meta:
+        model = User
+        fields = ('id', 'username', 'snippets')

testproj/users/urls.py

@@ -0,0 +1,8 @@
+from django.conf.urls import url
+
+from users import views
+
+urlpatterns = [
+    url(r'^$', views.UserList.as_view()),
+    url(r'^(?P<pk>[0-9]+)/$', views.user_detail),
+]

testproj/users/views.py

@@ -0,0 +1,24 @@
+from django.contrib.auth.models import User
+from rest_framework.decorators import api_view
+from rest_framework.generics import get_object_or_404
+from rest_framework.response import Response
+from rest_framework.views import APIView
+
+from users.serializers import UserSerializer
+
+
+class UserList(APIView):
+    """UserList cbv classdoc"""
+
+    def get(self, request):
+        queryset = User.objects.all()
+        serializer = UserSerializer(queryset, many=True)
+        return Response(serializer.data)
+
+
+@api_view(['GET'])
+def user_detail(request, pk):
+    """user_detail fbv docstring"""
+    user = get_object_or_404(User.objects, pk=pk)
+    serializer = UserSerializer(user)
+    return Response(serializer.data)