CLEANUP: removed obsolete examples an move a few to better places

CLEANUP: removed obsolete examples an move a few to better places

The following example files awere removed as irrelevant by this
time :
  auth.cfg check.conf ssl.cfg haproxy.spec

The following scripts were removed as having been unused for more
than a decade :
  debug2ansi debug2html debugfind check init.haproxy stats_haproxy.sh

seemless_reload.txt was moved to doc/ where it's more suitable.

haproxy.vim was moved to contrib/syntax-highlight/

scripts/create-release was updated not to try to update haproxy.spec
anymore.