Big Bang
mkrelease: utility to generate ChangeLogs, release news and release uploads

* history:
  20100827: implemented 'news' command
  20100421: added tagging, even revision checking and revision bumping
  20100420: implemented rsync based 'upload' for release tarballs
  20090605: ported to git-1.6.0
  20080515: take packed-refs into account as git stamp file
  20070820: implemented 'commit-stamps', handle non-symbolic git stamp files
  20070518: implemented 'ChangeLog' generation from git"
  20060217: implemented scp based remote file updates
mkrelease: added versioning and change history
mkrelease: implemented 'shellvar' command to extract configure.in versions
mkrelease: check HEAD against upstream repository
mkrelease: only upload tarball after tagging and bumping succeeded
mkrelease: fixed 'commit-stamps' outside of git repos
mkrelease: automatically extract contributors from NEWS file
mkrelease: allow checks of contributor lists
mkrelease: consolidated changelog entry times
mkrelease: ChangeLog: use compact merge summaries
mkrelease: generate ChangeLog with unfolded merge history
mkrelease: check for master and fix ssh warnings
mkrelease: skip HEAD vs. upstream check, which nees different release style
mkrelease: show how to push the actual release commit to upstream
mkrelease: show how to fast-forward merge 'devel' after release
mkrelease: news: exclude history reachable from non-linear release tags
mkrelease: news / ChangeLog: support git log --first-parent
mkrelease: news: support full commit message body listing
mkrelease: ChangeLog: include merge commits in history