RELEASE_NOTES include extra items

[edwardhartnett]

There is a bunch of extra text in the RELEASE_NOTES.md file that was apparently inserted by mistake. In addition to the usual bullet list, there is a list of all commit message since 4.3.1.

This is what is causing #2421 to fail. Between the time that @DennisHeimbigner took his branch and submitted his PR, the automatic checking of doxygen documentation in the CI had been turned on in #2377.

In the RELEASE_NOTES.md file, as with all doxygen files, all uses of the @ character must be escaped. For example, here's some correct usage from the file:

* [BugFix][Enhancement] Various and sundry bugfixes and performance enhancements, thanks to \@edhartnett, \@gsjaardema, \@t-b, \@wkliao, and all of our other contributors.

Note that the @ in all cases is preceded with a backslash . So it needs to be \@t-b not just @t-b

There are a lot of ampersands in the extra material in RELEASE_NOTES.md, and they are generating doxygen warnings, which are being treated (correctly) as errors in the CI.

[edwardhartnett]

Also looking at the release notes on-line I see the bullet list becomes a little unhinged after the forth bullet point... Not sure what is happening there...

[edwardhartnett]

OK it was a stray quote that didn't have a matching quote. That caused the bullet list to go bonkers: