Straight copy of mongo-livedata -> redis-livedata
Repoint redis-livedata -> npm redis, rename some mongo-named files
Rename Meteor.Collection -> Meteor.RedisCollection

At least for now; we might well tweak this later
Rename collection.js -> redis_collection.js (and tests)
Rename MongoInternals -> RedisInternals
Rename MongoTest -> RedisTest
More mostly superficial changes from Mongo -> Redis
URL parsing code
Cursor._mongo -> Cursor._connection
Don't support ObjectID, just string keys
Don't support transforms (which depend on minimongo)
Fix typo
Rename mongo-livedata to redis-live in tests & stats
Adapting the tests to be Redis specific
hmset
Import redis_watcher from spike
Redis subscriptions
Make RedisObserver a first-class object; support stop()
hincrby
Support del (and observe)