This is a drop-in replacement of appengine/datastore that automatically caches structs and PropertyLoadSavers in memcache.

• If Get or GetMulti miss when reading from memcache, they fallback to reading from datastore and load the result into memcache for next time.
• Put and PutMulti write to memcache and datastore.
• Delete and DeleteMulti delete from memcache and datastore.

cachestore uses datastore keys and gob encoded values to create memcache items

###Known Issues:

• Get/Put only work with structs and not struct pointers
• GetMulti/PutMulti only work with arrays of structs and not arrays of struct pointers