WL#5227: Add other Cluster types to HA chapter

Affects: Server-Prototype Only   —   Status: In-Progress   —   Priority: Medium

Add details on using more cluster solutions to the HA chapters in the refman. 

We should include: 

Sun Cluster Data Service
Redhat Cluster Suite

This is driven by, and partially to complete, the request from: 

http://bugs.mysql.com/bug.php?id=42899