Help - Preference - change to "Preferences"

Maybe it is worth to consider renaming the help page "Preference" to "Preferences".

The "Preferences" term is used hawtio-wide in all links.
As I can see, this change would encompass modification in:
1. Help page title
2. Link to the help page at /hawtio/index.html#/help/index/ in the left navigation column.
3. Page address