add libmono-winforms2.0-cil dep for debian/ubuntu
ported first Nod mission to Lua
Update d2k mod.yaml for tex
update arrakis.yaml for tex
d2k tex files
hide GDI soldiers behind trees
added a description that can be displayed as mission briefing
don't crash map preview when the tileset can not be found

fixes #3033
move legacy map import into the command line utility

closes #4368
selectable maps by default
automatically fix open areas

and don't hard-code the tiles no more
default to filename instead of "(null)" when the map has no name
more verbose output on ignored player reference values
Merge pull request #4401 from dderevjanik/bleed

D2k terrain expansion
Merge pull request #4398 from bkero/patch-1

add libmono-winforms2.0-cil dep for debian/ubuntu
Update AUTHORS
Merge pull request #4394 from Mailaender/legacy-map-import

Moved the LegacyMapImport into Utility
remove left-overs from initial spice render experiments
simpler category description for rotten base
keep all but one randomized sand tile

render tiles that should be replaced black