Move to autotools

 - Can still be installed just by copying firehol/firehol.in
 - CVS versions will not work any longer, so now following
   http://semver.org/
 - Git commit hooks included to enforce version numbering
   across the various files, NEWS, ChangeLog, configure.ac and
   sbin/firehol.in
 - Replace HTML website copy with DocBook manual
Remove checking of MINOR number in service files
Merge ../firehol