Move an entry of net-imap to the default gems section

doc/maintainers.rdoc

@@ -54,8 +54,6 @@ Zachary Scott (zzak)
   _unmaintained_
 [lib/net/ftp.rb]
   Shugo Maeda (shugo)
-[lib/net/imap.rb]
-  Shugo Maeda (shugo)
 [lib/net/http.rb, lib/net/https.rb]
   NARUSE, Yui (naruse)
 [lib/open-uri.rb]
@@ -188,6 +186,9 @@ Zachary Scott (zzak)
   Keiju ISHITSUKA (keiju)
   https://github.com/ruby/mutex_m
   https://rubygems.org/gems/mutex_m
+[lib/net/imap.rb]
+  Shugo Maeda (shugo)
+  https://github.com/ruby/net-imap
 [lib/net/pop.rb]
   _unmaintained_
   https://github.com/ruby/net-pop

doc/standard_library.rdoc

@@ -17,7 +17,6 @@ Find:: This module supports top-down traversal of a set of file paths
 MakeMakefile:: Module used to generate a Makefile for C extensions
 Net::FTP:: Support for the File Transfer Protocol
 Net::HTTP:: HTTP client api for Ruby
-Net::IMAP:: Ruby client api for Internet Message Access Protocol
 OpenURI:: An easy-to-use wrapper for Net::HTTP, Net::HTTPS and Net::FTP
 OptionParser:: Ruby-oriented class for command-line option analysis
 PP:: Provides a PrettyPrinter for Ruby objects
@@ -68,6 +67,7 @@ IRB:: Interactive Ruby command-line tool for REPL (Read Eval Print Loop)
 Logger:: Provides a simple logging utility for outputting messages
 Matrix:: Represents a mathematical matrix.
 Mutex_m:: Mixin to extend objects to be handled like a Mutex
+Net::IMAP:: Ruby client api for Internet Message Access Protocol
 Net::POP3:: Ruby client library for POP3
 Net::SMTP:: Simple Mail Transfer Protocol client library for Ruby
 Observable:: Provides a mechanism for publish/subscribe pattern in Ruby