more utf8 marking

clarify license

reloadable archetypes, maybe

- upgrade crossfire trt to the GPL version 3 (hopefully correctly).
- add a single file covered by the GNU Affero General Public License
  (which is not yet released, so I used the current draft, which is
  legally a bit wavy, but its likely better than nothing as it expresses
  direct intent by the authors, and we can upgrade as soon as it has been
  released).
  * this should ensure availability of source code for the server at least
    and hopefully also archetypes and maps even when modified versions
    are not being distributed, in accordance of section 13 of the agplv3.

- MAJOR CHANGE
- you now need to use cfutil to install arches.
- former bigfaces are broken in the server
- bigfaces are no longer supported. at all.
- use face numbers instead of pointers
  * saves lotsa space
  * saves lotsa indirections
  * saves lots(?) cpu cycles
- completely rewrote face handling
- faces can now be added at runtime
- reload will add new faces
- this does not apply to animations
- use a hastable instead of binary search (faster) for faces
- face caching is broken
- facesets are gone
- server always reports MAX_FACES to any client who asks

- use a simpler, less fancy loader base design (basically a one-line-lookahead
  top-down parser).

- improve error messages from object_thawer to incldue line numbers
- provide geenric parse error handler
- finish basic design of generic object loader
- implement generic regions loader
- use it to load regions:
  loader_region loader;
  if (!loader.load (filename))
    error;
- regions should now be the very first filetype that could be reloaded at runtime

added some copyrights

more slight copyright adjustments

string scanning (e.g. for patch) is not implemented ATM but should be easy
to add with an alternative constructor for object_thawer.

Rewrote flex scanner to be simpler, faster and more modularised.

Initial speedup: 16%

(ah well)

Initial revision