* scripts/gitlog-to-changelog: Ignore lines after a "--" line.
--
The first line with two dashes at the start of a line (optionally
followed by white space) stops copying the commit log lines to the
ChangeLog entry in "make dist". This is useful to allow adding
comments to the log which are not useful in a ChangeLog.
* scripts/gitlog-to-changelog: New script. Taken from gnulib.
* scripts/git-log-fix: New file.
* scripts/git-log-footer: New file.
* doc/HACKING: Describe the ChangeLog policy
* ChangeLog: New file.
* Makefile.am (EXTRA_DIST): Add new files.
(gen-ChangeLog): New.
(dist-hook): Run gen-ChangeLog.
Rename all ChangeLog files to ChangeLog-2011.