Release Notes update

[John J. McDonough]

We had a rash of bugs to the release notes, many from translators --
thank you very much.  We appreciate that.

However, that did result in having to push updated POTs.  Most are tiny
typo changes, but in one case there is an entirely new section,
Installation.

My apologies for the late change, especially to the Ukranian team who
was complete.  Most of those I should have caught earlier, although
there is no way I would have caught the installation change.

--McD