fixing manual entry for ListAllPropertyKeys, documenting how it lists _all_ keys that were ever in use
Makes uniqueness an explicit, documented concern
Merge pull request #1185 from systay/uniqueness

Makes uniqueness an explicit, documented concern
Use camelCase for function names

Renames percentile_cont and percentile_disc to percentileCont and percentileDisc respectively
Merge pull request #1189 from cleishm/camelcase_funcs

Use camelCase for function names
Clean up. Mostly by removing useless comments, but also removed the CircuitBreaker. Not sure if that is a good idea or not.