Added "new in development version" markers to new email stuff.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@5147 bcc190cf-cafb-0310-a4f2-bffc1f526a37

docs/email.txt

@@ -189,6 +189,8 @@ from the request's POST data, sends that to admin@example.com and redirects to
 The EmailMessage and SMTPConnection classes
 ===========================================
 
+**New in Django development version**
+
 Django's ``send_mail()`` and ``send_mass_mail()`` functions are actually thin
 wrappers that make use of the ``EmailMessage`` and ``SMTPConnection`` classes
 in ``django.mail``.  If you ever need to customize the way Django sends email,

docs/settings.txt

@@ -431,6 +431,8 @@ trailing space.
 EMAIL_USE_TLS
 -------------
 
+**New in Django development version**
+
 Default: ``False``
 
 Whether to use a TLS (secure) connection when talking to the SMTP server.