Add myself to email, move 'windows' to Platforms where it

belongs, and finish alphabetizing the Platforms list.

Misc/maintainers.rst

@@ -88,7 +88,7 @@ dis
 distutils           tarek
 doctest             tim_one (inactive)
 dummy_threading     brett.cannon
-email               barry
+email               barry, r.david.murray
 encodings           lemburg, loewis
 errno
 exceptions
@@ -251,12 +251,13 @@ Platform            Maintainers
 AIX
 Cygwin              jlt63
 FreeBSD
+HP-UX
 Linux
 Mac                 ronaldoussoren
 NetBSD1
 OS2/EMX             aimacintyre
 Solaris
-HP-UX
+Windows
 ==================  ===========
 
 
@@ -291,5 +292,4 @@ threads
 tracker
 unicode             lemburg, ezio.melotti, haypo
 version control
-windows
 ==================  ===========