Merge pull request #18 from derenio/replace_django_get_cache_with_caches

Fixes RemovedInDjango19Warning IRT 'get_cache'

versatileimagefield/settings.py

@@ -3,7 +3,6 @@
 from django.conf import settings
 from django.core.cache import (
     cache as default_cache,
-    get_cache,
     InvalidCacheBackendError
 )
 
@@ -59,7 +58,14 @@
 )
 
 try:
-    cache = get_cache(VERSATILEIMAGEFIELD_CACHE_NAME)
+    # Beginning with Django 1.7 'get_cache' is deprecated in favor of 'caches'
+    # and will be dropped in Django 1.9
+    try:
+        from django.core.cache import caches
+        cache = caches[VERSATILEIMAGEFIELD_CACHE_NAME]
+    except ImportError:
+        from django.core.cache import get_cache
+        cache = get_cache(VERSATILEIMAGEFIELD_CACHE_NAME)
 except InvalidCacheBackendError:
     cache = default_cache