First attempt at making config loadable through string config overrides in an env variable.

storage/fakestorage.py

@@ -0,0 +1,24 @@
+from storage.basestorage import BaseStorage
+
+
+class FakeStorage(BaseStorage):
+  def _init_path(self, path=None, create=False):
+    return path
+
+  def get_content(self, path):
+    raise IOError('Fake files are fake!')
+
+  def put_content(self, path, content):
+    return path
+
+  def stream_read(self, path):
+    yield ''
+
+  def stream_write(self, path, fp):
+    pass
+
+  def remove(self, path):
+    pass
+
+  def exists(self, path):
+    return False