Rename the cache instance to response_cache so there isn't a conflict with cache module.

Author: dcloud

sunlight/__init__.py

@@ -69,4 +69,4 @@ def _attempt_to_load_apikey():
 _attempt_to_load_apikey()
 
 
-cache = sunlight.cache.response_cache
+response_cache = sunlight.cache.response_cache

sunlight/cache.py

@@ -1,11 +1,12 @@
 '''
-The cache is disabled by default. Use it like so:
+.. module:: cache
 
-import logging
-from sunlight import cache
+The cache is disabled by default. Use it like so: ::
 
-cache.enable('mongo')
-cache.logger.setLevel(logging.DEBUG)
+    import logging
+    from sunlight import response_cache
+    response_cache.enable('mongo')
+    response_cache.logger.setLevel(logging.DEBUG)
 
 Note: the implementation below doesn't bother with cache expiration.
 Typical use case is caching API calls during an expensive build process.