title: Memcache not present in App-Engine-Patch?
body: <p>I'm trying to store a date into memcache using the following code:</p>
  
  <pre>
  from datetime import date
  from google.appengine.api.memcache import Client
  
  MEMCACHE_DATE_KEY = 'date'
  
  client = Client()
  
  def last_date():
      return client.get(MEMCACHE_DATE_KEY)
  
  def new_date():
      client.set(MEMCACHE_DATE_KEY, date.today())
  </pre>
  
  <p>I am getting this error:</p>
  
  <pre>
  Traceback (most recent call last):
    File "manage.py", line 4, in 
      setup_env(manage_py_env=True)
    File "/Users/benji/Projects/app-engine-patch-sample/common/appenginepatch/aecmd.py", line 67, in setup_env
      patch_all()
    File "/Users/benji/Projects/app-engine-patch-sample/common/appenginepatch/appenginepatcher/patch.py", line 29, in patch_all
      patch_app_engine()
    File "/Users/benji/Projects/app-engine-patch-sample/common/appenginepatch/appenginepatcher/patch.py", line 520, in patch_app_engine
      db.Model._meta = _meta(db.Model, ())
    File "/Users/benji/Projects/app-engine-patch-sample/common/appenginepatch/appenginepatcher/patch.py", line 258, in __init__
      settings.INSTALLED_APPS
    File "/Users/benji/Projects/share-renting-engine/common/zip-packages/django-1.1.zip/django/utils/functional.py", line 269, in __getattr__
    File "/Users/benji/Projects/share-renting-engine/common/zip-packages/django-1.1.zip/django/conf/__init__.py", line 40, in _setup
  
    File "/Users/benji/Projects/share-renting-engine/common/zip-packages/django-1.1.zip/django/conf/__init__.py", line 73, in __init__
  
    File "/Users/benji/Projects/share-renting-engine/common/zip-packages/django-1.1.zip/django/utils/importlib.py", line 35, in import_module
    File "/Users/benji/Projects/share-renting-engine/settings.py", line 120, in 
      from ragendja.settings_post import *
    File "/Users/benji/Projects/app-engine-patch-sample/common/appenginepatch/ragendja/settings_post.py", line 98, in 
      check_app_imports(app)
    File "/Users/benji/Projects/app-engine-patch-sample/common/appenginepatch/ragendja/settings_post.py", line 63, in check_app_imports
      __import__(app, {}, {}, [''])
    File "/Users/benji/Projects/share-renting-engine/engine/__init__.py", line 5, in 
      if date.today() != last_date():
    File "/Users/benji/Projects/share-renting-engine/engine/utils/date.py", line 12, in last_date
      return client.get(MEMCACHE_DATE_KEY)
    File "/Users/benji/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/api/memcache/__init__.py", line 428, in get
      self._make_sync_call('memcache', 'Get', request, response)
    File "/Users/benji/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/api/apiproxy_stub_map.py", line 86, in MakeSyncCall
      return stubmap.MakeSyncCall(service, call, request, response)
    File "/Users/benji/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/api/apiproxy_stub_map.py", line 279, in MakeSyncCall
      assert stub, 'No api proxy found for service "%s"' % service
  <b>AssertionError: No api proxy found for service "memcache"</b>
  </pre>
  
  <p>How can i use memcache with app-engine-patch?</p>
  
  <p>Thanks for your time.</p>