- Converted the Heretic sound sequences and the particle fountains to DECORATE.

- Added DECORATE support for setting an actor's args. If this is done
  it will also disable the actor's special that can be set in a map. This
  is for actors that want to use A_CountdownArg or similar functions
  that use the args for something different than the special's parameters.
- Converted a_sharedmisc.cpp to DECORATE.
- Added a new NActorIterator that can search for classes specified by name.
- Added a new constructor to TThinkerIterator that can search
  for DECORATE defined subclasses that are not represented by a real C++ class.
- Fixed: BuildInfoDefaults must set the parent symbol table so that 
  all actors can get to the global symbols stored in AActor.
- Fixed some minor inconsistencies in the Arch-Vile's DECORATE definition.
- Fixed: A_VileAttack moved the flame without relinking it into the sector 
  lists. It also forgot to set the z-position correctly. (original Doom bug.)
- Fixed: The Doom 2 cast finale didn't work with the dynamic state name handling.


SVN r401 (trunk)

src/dthinker.cpp

@@ -385,6 +385,7 @@ void FThinkerIterator::Reinit ()
 
 DThinker *FThinkerIterator::Next ()
 {
+	if (m_ParentType == NULL) return NULL;
 	do
 	{
 		do