Added in tests for RedisArray functionality
Added in tests for RedisArray functionality

This tests the Redis driver against multiple backend Redis servers,
which internally uses the RedisArray object to wrap around multiple
servers. This test requires a second redis server on the 6380 port in
order to run.

csburton/Stash,tedious/Stash,AndrewCarterUK/Stash,bankiru/Stash,theUniC/Stash,csburton/Stash,localheinz/Stash,bankiru/Stash,graphis/Stash,AndrewCarterUK/Stash,alawnchen/Stash,localheinz/Stash,graphis/Stash,andrerom/Stash,theUniC/Stash,andrerom/Stash,tedious/Stash,alawnchen/Stash,jaredtking/Stash,jaredtking/Stash