1) Replace http://distcc.samba.org with the new google code location
2) Add favicon.ico from the distcc.samba.org site
3) Use distcc@lists.samba.org as the only distcc mailing list (there
   were at least three mailing lists scattered around the docs, some of
   which don't even exist anymore!)
4) Update man pages and other docs to not use "distcc-pump" anywhere;
   it's now "pump mode" or "distcc's pump mode", or "distcc-pump
   mode".

I also add, to the README, some discussion of scaling to hundreds of
machines.

Reviewed by fergus and klarlund

Reviewed by Nils Klarlund.

location:
   README                     Our blurp, tooting our horn
   INSTALL                    The run_all_autoconf and friends incantations
   COPYING                    GPL 2.0 license
   distcc/README              Martin's blurp
   distcc/INSTALL             Also: more on masquerading, host lists,
   distcc/COPYING             GPL 2.0 license
   distcc/NEWS                Recently updated
   distcc/AUTHORS             Martin Pool
   distcc/README.packaging    Various advice (version numbering etc)
   distcc/TODO                A very long list (not updated)
   distcc/ChangeLog	      All changes under arch and under bzr
   distcc/ChangeLog.old	      All changes from before arch.

Now all live in the top-level directory.  This is the first step
towards our eventual goal of getting rid of the second-level distcc
and include_server directories, and just having everything under one
top-level directory.  We're all part of the same project now!

Here's how I merged and updated content:

. README became README.pump.  It was slightly edited for clarity.  (I
  also redid all the line-wrapping, which makes diff-ing
  difficult. :-( )  distcc/README became README, with a small amount
  of text added to describe 'pump' mode, and point to README.pump.

. distcc/NEWS became NEWS.  pump functionality was added (a new
  "distcc-3.0" entry).  I also added all new features and bug-fixes
  since we moved from arch to bzr.  It looks like NEWS was
  well-maintained before the move to bzr, so this might be pretty
  complete.  There may be some more pump-developed bugfixes we need to
  add, though.

. I got rid of distcc/COPYING.  Now COPYING is the only license in
  this directory.  This file was not changed.  It remains the GPL 2.0
  license.

. distcc/AUTHORS became AUTHORS.  I changed Martin to maintainer
  emeritus.  I added the Google authors as authors of the "pump"
  functionality, and current maintainers.  I set the Google email
  address to be distcc@googlegroups.com, which is a new group I've set
  up to be the clearinghouse for distcc discussions.

. distcc/README.packaging became README.packaging.  It was not
  otherwise changed.

. distcc/TODO became TODO.  It was not otherwise changed, except I
  added that folks should look for FIXMEs in source files, not just
  TODOs.

. I merged INSTALL and distcc/INSTALL (in that order).  I rearranged
  the text a little bit to remove redundancy (both talked about
  running 'configure'), but did not make any contentful changes.

. I merged distcc/ChangeLog and distcc/ChangeLog.old to have a single
  changelog again going all the way to 2002.  Comments now separate
  the various version control systems used.  (svn is #4!)  The single
  ChangeLog file now lives in the top-level directory.