Added ignore_swappable to StateApps

        # Prepare some old/new state and model lists, separating

        # proxy models and ignoring unmigrated apps.

        self.old_apps = self.from_state.apps

        self.old_apps = self.from_state.concrete_apps

        self.new_apps = self.to_state.apps

        self.old_model_keys = []

        self.old_proxy_keys = []

    def apps(self):

        return StateApps(self.real_apps, self.models)

    @property

    def concrete_apps(self):

        self.apps = StateApps(self.real_apps, self.models, ignore_swappable=True)

        return self.apps

    @classmethod

    def from_apps(cls, apps):

        "Takes in an Apps and returns a ProjectState matching it"

    Subclass of the global Apps registry class to better handle dynamic model

    additions and removals.

    """

    def __init__(self, real_apps, models):

    def __init__(self, real_apps, models, ignore_swappable=False):

        # Any apps in self.real_apps should have all their models included

        # in the render. We don't use the original model instances as there

        # are some variables that refer to the Apps object.