Add copyright and permissions notices.

CONTRIBUTE

+Copyright (C) 2006, 2007  Free Software Foundation, Inc.
+Copying and distribution of this file, with or without modification,
+are permitted provided the copyright notice and this notice are preserved.
+
 
 			Contributing to Emacs
 

INSTALL.CVS

+Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007
+  Free Software Foundation, Inc.
+Copying and distribution of this file, with or without modification,
+are permitted provided the copyright notice and this notice are preserved.
+
+
 	      Building and Installing Emacs from CVS
 
 Some of the files that are included in the Emacs tarball, such as

README

+Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007
+  Free Software Foundation, Inc.
+Copying and distribution of this file, with or without modification,
+are permitted provided the copyright notice and this notice are preserved.
+
+
 This directory tree holds version 22.0.93 of GNU Emacs, the extensible,
 customizable, self-documenting real-time display editor.
 

etc/ERC-NEWS

 ERC NEWS                                                       -*- outline -*-
 
+Copyright (C) 2006, 2007  Free Software Foundation, Inc.
+Copying and distribution of this file, with or without modification,
+are permitted provided the copyright notice and this notice are preserved.
+
+
 * Changes in ERC 5.2 (stable pre-release for Emacs 22)
 
 ** M-x erc RET now starts ERC.

lisp/calc/README

+Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007
+  Free Software Foundation, Inc.
+Copying and distribution of this file, with or without modification,
+are permitted provided the copyright notice and this notice are preserved.
+
 
 This directory contains Calc, an advanced desk calculator for GNU
 Emacs.

lispintro/README

+Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007
+  Free Software Foundation, Inc.
+Copying and distribution of this file, with or without modification,
+are permitted provided the copyright notice and this notice are preserved.
+
+
 This directory contains the source of the "Introduction to Programming
 in Emacs Lisp" written by Robert J. Chassell, bob@gnu.org.  This
 manual is an elementary introduction to programming in Emacs Lisp for

lispref/README

+Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007
+  Free Software Foundation, Inc.
+Copying and distribution of this file, with or without modification,
+are permitted provided the copyright notice and this notice are preserved.
+
+
 README for Edition 2.9 of the Emacs Lisp Reference Manual.
 
 * This directory contains the texinfo source files for the Reference

src/README

+Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007
+  Free Software Foundation, Inc.
+Copying and distribution of this file, with or without modification,
+are permitted provided the copyright notice and this notice are preserved.
+
+
 This directory contains the source files for the C component of GNU Emacs.
 Nothing in this directory is needed for using Emacs once it is built
 and installed, if the dumped Emacs (on Unix systems) or the Emacs