Allow multiple Redis servers through multiple connection groups. Backwards compatible. See Issue joelcox/codeigniter-redis#31
Merge branch 'multiple_redis_servers' of git://github.com/aw/codeigniter-redis into multiple-servers
Added modified the way config is loaded for different connection groups.
Added tests for the various formats of configuration and updated docs with info about connection groups.
Merge branch 'multiple-servers' into develop
Fixed naming of Redis class to CI_Redis in new tests.