Cache sidebar with a simple caching API We cache the sidebar once for every user, the downside is that once the user meets new access criteria, their sidebar does not get updated. This can be fixed by calling soc.cache.sidebar.flush() when appropriate. Patch by: Sverre Rabbelier

Rename ModelProperties to EntityProperties We use 'model' when referring to the db.Model, the context in which 'ModelProperties' was used we really mean 'entity', which refers to an instantiation of the model. Patch by: Sverre Rabbelier