bug#19113: Generate a ChangeLog file from commit logs

[Paul Eggert]

Paul Eggert wrote:
> combine the existing ChangeLogs (there is
> about 24 MB worth) into a single ChangeLog.1 file at the top level.

I implemented this, along with some other fixes (notably, getting a proper 
copyright notice into the generated ChangeLog file), and am attaching the 
corresponding patches.  I would like to install this into the emacs-24 branch 
and then merge that into the master.

There are three patches.  Patches 1 and 3 are so large that I'm just attaching 
summaries here.  (Patch 1 is essentially the same as before.)  You can get the 
full patches temporarily from here:

http://cs.ucla.edu/~eggert/emacs/

0001-Rename-old-ChangeLog-files-to-prepare-for-gitlog-to-.patch
Description: Text Data

0002-Generate-a-ChangeLog-file-from-commit-logs.patch
Description: Text Data

0003-Combine-all-historical-ChangeLogs-into-ChangeLog.1.patch
Description: Text Data