Big email 3.0 API changes, with updated unit tests and documentation.
Briefly (from the NEWS file):

- Updates for the email package:
  + All deprecated APIs that in email 2.x issued warnings have been removed:
    _encoder argument to the MIMEText constructor, Message.add_payload(),
    Utils.dump_address_pair(), Utils.decode(), Utils.encode()
  + New deprecations: Generator.__call__(), Message.get_type(),
    Message.get_main_type(), Message.get_subtype(), the 'strict' argument to
    the Parser constructor.  These will be removed in email 3.1.
  + Support for Python earlier than 2.3 has been removed (see PEP 291).
  + All defect classes have been renamed to end in 'Defect'.
  + Some FeedParser fixes; also a MultipartInvariantViolationDefect will be
    added to messages that claim to be multipart but really aren't.
  + Updates to documentation.
diff --git a/Doc/lib/emailencoders.tex b/Doc/lib/emailencoders.tex
index cd54d68..a49e04d 100644
--- a/Doc/lib/emailencoders.tex
+++ b/Doc/lib/emailencoders.tex
@@ -8,11 +8,11 @@
 
 The \module{email} package provides some convenient encodings in its
 \module{Encoders} module.  These encoders are actually used by the
-\class{MIMEImage} and \class{MIMEText} class constructors to provide default
-encodings.  All encoder functions take exactly one argument, the
-message object to encode.  They usually extract the payload, encode
-it, and reset the payload to this newly encoded value.  They should also
-set the \mailheader{Content-Transfer-Encoding} header as appropriate.
+\class{MIMEAudio} and \class{MIMEImage} class constructors to provide default
+encodings.  All encoder functions take exactly one argument, the message
+object to encode.  They usually extract the payload, encode it, and reset the
+payload to this newly encoded value.  They should also set the
+\mailheader{Content-Transfer-Encoding} header as appropriate.
 
 Here are the encoding functions provided: