Happy new year - hope it won't be as cosmetic and useless as this

Happy new year - hope it won't be as cosmetic and useless as this
commit:

Replace the 4-clause BSD copyright notice with a simplified 2-clause one
obtained from FreeBSD.  Hereby we lift the following two restrictions:

-# 3. All advertising materials mentioning features or use of this software
-#    must display the following acknowledgement:
-# This product includes software developed by the University of Zagreb,
-# Croatia and its contributors.
-# 4. Neither the name of the University nor the names of its contributors
-#    may be used to endorse or promote products derived from this software
-#    without specific prior written permission.

Include all the years from when a file originally appeared until including
2008. in copyright notices.

Drop the "all rights reserved" statement from copyright notices, given
that this is implied automatically by contemproary interpretations of US
copyright law.

Our MZT / MZOS funding only covered years 2004. and 2005., so drop the
notice crediting MZT / MZOS from files / code created from scratch in
2006. and afterwards.

Move the RCS ID line after the copyright notice.

Bug found by:
Submitted by:
Reviewed by:
Approved by:
Obtained from: