data structure changes to reduce usage of redis keys *
a bit more key blippage, migration on redis init if needed
Merge branch 'master' into 674_entites_get_speed
logging, semaphore for data migration, hat-tip to @jessereynolds
improve error message
Merge pull request #682 from flapjack/674_entites_get_speed

Cache entity and check name <-> id lookups