Doom64: Changed name of the Doom64 plugin

The plugin is for the Doom 64: Absolution TC by Kaiser and others.
It does not represent the original Doom 64 by Midway Software.

http://doomwiki.org/wiki/Doom_64_TC

doomsday/plugins/doom64/src/d_api.c

@@ -68,7 +68,7 @@ int G_RegisterGames(int hookType, int param, void* data)
 
     GameDef const doom64Def = {
         "doom64", CONFIGDIR,
-        "Doom 64", "Midway Software",
+        "Doom 64: Absolution", "Kaiser et al.",
         "", "",
         "$(App.DataPath)/$(GamePlugin.Name)/doom64.mapinfo"
     };