WL#1834: New name on configuration parameters

Affects: Server-4.1   —   Status: Un-Assigned   —   Priority: Medium

Now that MySQL Cluster will enter a more public domain by announcing
soon availability of binaries for MySQL Cluster it is important to have
easy to remember names of configuration parameters.

Thus it is recommended to change most of the existing names. In addition it is
recommended to have names case-insensitive.

The following names are proposed (added later):