move cache.py to mapdata root

src/c3nav/mapdata/apps.py

@@ -5,5 +5,5 @@ class MapdataConfig(AppConfig):
     name = 'c3nav.mapdata'
 
     def ready(self):
-        from c3nav.mapdata.render.cache import register_signals
+        from c3nav.mapdata.cache import register_signals
         register_signals()

src/c3nav/mapdata/models/geometry/level.py

@@ -10,12 +10,12 @@ from shapely.affinity import scale
 from shapely.geometry import JOIN_STYLE, LineString
 from shapely.ops import cascaded_union
 
+from c3nav.mapdata.cache import changed_geometries
 from c3nav.mapdata.fields import GeometryField
 from c3nav.mapdata.models import Level
 from c3nav.mapdata.models.access import AccessRestrictionMixin
 from c3nav.mapdata.models.geometry.base import GeometryMixin
 from c3nav.mapdata.models.locations import SpecificLocation
-from c3nav.mapdata.render.cache import changed_geometries
 from c3nav.mapdata.utils.geometry import assert_multilinestring, assert_multipolygon, clean_geometry
 
 

src/c3nav/mapdata/models/geometry/space.py

@@ -2,10 +2,10 @@ from django.db import models
 from django.utils.translation import ugettext_lazy as _
 from shapely.geometry import CAP_STYLE, JOIN_STYLE, mapping
 
+from c3nav.mapdata.cache import changed_geometries
 from c3nav.mapdata.fields import GeometryField
 from c3nav.mapdata.models.geometry.base import GeometryMixin
 from c3nav.mapdata.models.locations import SpecificLocation
-from c3nav.mapdata.render.cache import changed_geometries
 from c3nav.mapdata.utils.json import format_geojson