Merge branch 'attribute_access' into release

Conflicts:
	philo/models/nodes.py

diff --cc philo/models/base.py
Simple merge

diff --cc philo/models/nodes.py
index a9b77fb,44a4d31..a225416
--- 1/philo/models/nodes.py
--- 2/philo/models/nodes.py
+++ b/philo/models/nodes.py
@@@ -12,9 -12,10 +12,9 @@@ from django.template import add_to_buil
  from django.utils.encoding import smart_str
  
  from philo.exceptions import MIDDLEWARE_NOT_CONFIGURED, ViewCanNotProvideSubpath, ViewDoesNotProvideSubpaths
- from philo.models.base import TreeEntity, Entity, QuerySetMapper, register_value_model
+ from philo.models.base import TreeEntity, Entity, register_value_model
  from philo.models.fields import JSONField
- from philo.utils import ContentTypeSubclassLimiter
+ from philo.utils import ContentTypeSubclassLimiter, LazyPassthroughAttributeMapper
 -from philo.validators import RedirectValidator
  from philo.signals import view_about_to_render, view_finished_rendering