Merge pull request #3 from hasegeli/master

Fixes on the README for master
Setting defaults for redisTableOptions properties keyprefix, keyset, and table_type
in redisBeginForeignScan to allow returning results from all table types in 9.2+
Make set results order predictable so we can pass regression all the time.
hget function added to get value of a field from a Redis hash as an array.