Cleanups in base.Logic
* Use regular kwargs instead of **kwargs
* Fold getKeyNameFromFields into _keyName
* Fold getIfFields into getFromFieldsOr404
* Rename getKeyValues to getKeyValuesFromEntity
* Rename getKeyFieldsFromDict to getKeyFieldsFromFields
* Rename getFromFieldsOr404 to getFromKeyFieldsOr404
* Rename getKeyValues to getKeyValuesFromEntity
Patch by: Sverre Rabbelier
from django.dispatch import Signal
class_prepared = Signal(providing_args=["class"])
pre_init = Signal(providing_args=["instance", "args", "kwargs"])
post_init = Signal(providing_args=["instance"])
pre_save = Signal(providing_args=["instance", "raw"])
post_save = Signal(providing_args=["instance", "raw", "created"])
pre_delete = Signal(providing_args=["instance"])
post_delete = Signal(providing_args=["instance"])
post_syncdb = Signal(providing_args=["class", "app", "created_models", "verbosity", "interactive"])