(svn r5946) -Add: merged the TGP branch to mainline. TGP adds:

- New optional landscape generator (TerraGenesis Perlin)
  - Load heightmaps (either BMP or PNG)
  - Progress dialog while generating worlds (no longer a 'hanging' screen)
  - New dialogs for NewGame, Create Scenario and Play Heightmap
    - Easier to configure your landscape
    - More things to configure (tree-placer, ..)
  - Speedup of world generation
  - New console command 'restart': restart the map EXACTLY as it was when you
      first started it (needs a game made after or with this commit)
  - New console command 'getseed': get the seed of your map and share it with
      others (of course only works with generated maps)
  - Many new, world generation related, things
  - Many internal cleanups and rewrites
  Many tnx to those people who helped making this:
     Belugas, DaleStan, glx, KUDr, RichK67, Rubidium, and TrueLight (alfabetic)
  Many tnx to those who helped testing:
     Arnau, Bjarni, and tokai (alfabetic)
  And to all other people who helped testing and sending comments / bugs
  Stats: 673 lines changed, 3534 new lines, 79 new strings

win32.c

@@ -899,6 +899,7 @@ void DeterminePaths(void)
 	_path.save_dir = str_fmt("%ssave", cfg);
 	_path.autosave_dir = str_fmt("%s\\autosave", _path.save_dir);
 	_path.scenario_dir = str_fmt("%sscenario", cfg);
+	_path.heightmap_dir = str_fmt("%sscenario\\heightmap", cfg);
 	_path.gm_dir = str_fmt("%sgm\\", cfg);
 	_path.data_dir = str_fmt("%sdata\\", cfg);
 	_path.lang_dir = str_fmt("%slang\\", cfg);
@@ -913,6 +914,7 @@ void DeterminePaths(void)
 	CreateDirectory(_path.save_dir, NULL);
 	CreateDirectory(_path.autosave_dir, NULL);
 	CreateDirectory(_path.scenario_dir, NULL);
+	CreateDirectory(_path.heightmap_dir, NULL);
 }
 
 int CDECL snprintf(char *str, size_t size, const char *format, ...)