[CentOS-docs] Update for FAQ - q.15 & q.31 update & merge

On 9 June 2015 at 07:55, Manuel Wolfshant <wolfy at nobugconsulting.ro> wrote:
>
<significant snippage>
>
> Call me picky but I'd rephrase
>      The CentOS Project ONLY provides updates or other changes for the
> latest version of each major branch.
> to
>      The CentOS Project provides updates or other changes ONLY for the
> latest version of each major branch.

The latter is preferable to the former (says a native Englishman).

Alan.