Fix spelling of "stand alone" in ascii art

Also unified the logic to match `genRedisInfoString`
Merge pull request #1895 from mattrobenolt/patch-1

Fix spelling of "stand alone" in ascii art
Cluster test: unit 06 cluster creation comment fixed.
Cluster test: unit 07, replicas migration.
Merge branch 'unstable' of github.com:/antirez/redis into unstable
* fixed doc URL for keyspace events
Fail SYNC if background save child aborted due to a signal.
Merge pull request #1896 from yossigo/bgsave-signal-fix

Fail SYNC if background save child aborted due to a signal.
Add Travis CI
Add automated testing for creating clusters

This script creates many different cluster configurations
by varying the number of instances and replica counts
defined at cluster initialization time.  If any cluster
topology fails to converge successfully, the entire test fails.

This script currently works on my OS X system and in a Linux VM.
It's designed to work on a CI server so it just runs
in the background and the system will report if the script
fails.
Add Redis cluster test to CI

The more tests the better!