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update copyrights to 2012

update copyright for up to 2010

clarify license

- 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.

rip out old help implementation in favour of the new one (which incidentally is non-blocking)

- implement yet another bug workaround for gcfclient. its rather sad.

when bg scrubbing, the server sends images in advance, about twice per second.

then receiving a new image, gcfclient destroys the imventory and rebuilds it
(the widgets). this makes using it rather hard, as twice per seconds all widgets
go away and are replaced by new ones, so mouse clicks, if not fast enough, will
be ignored, making the client rather hard to use.

soo.... only to background sending for cfplus, which needs it least.

- automake insists on naming all libdirs .../cfserver now. i have to concur :/
- correctly reattach to players on reload, this likely fixes the reload crash bug.
- init env vars very early, so perl gets to see them.

partially support vpath builds

install some pod files to be used by the server

more slight copyright adjustments

allow priviledge override for banish, kick, arrest, reset, teleport and summon

it "works" but is suboptimal because it *always* regenerates the help, even
if it doesn't have to. I'll see if I can do something with stamps.

updated help and improved dependencies and makefiles

Also generate wizhelp

version 2 :)