Include maxmemory-samples only when set
Add tcp-keepalive to redis conf, set default to 0 per normal installation.
maxmemorysamples is not set per normal installation
maxmemory-policy is not set per normal installation
Merge pull request #133 from colby/2.0.0_wip

tcp-keepalive option in redis.conf and bringing conf file in line with default installation
Using the .each method for arrays
Merge pull request #134 from colby/2.0.0_wip

Using the .each method for arrays
merge in 2.0.0_wip