- Added MF5_CANTSEEK flag to prevent seeker missiles from homing in on

certain actors and added an option to APowerInvisibility to set this
  flag when active.
- Added map specific automap backgrounds.
- Fixed: Voodoo dolls did not play a sound when dying.
- Added colorized error messages to DECORATE and made a few more error
  conditions that do not block further parsing not immediately abort.
- Made all errors in CreateNewActor not immediately fatal so that the
  rest of the DECORATE lump can be parsed normally to look for more errors.
- Fixed: Defining classes with the same name as their immediate base class
  was legal. It should not be allowed that a class has another one with the
  same name in its ancestry.
- Fixed: Formatting of the intermission screen on Heretic, Hexen and Strife
  was broken. Changed it to use WI_Drawpercent which does it properly and
  also allows showing percentage in these games now.
- Fixed: The MAPINFO parser ignored missing terminating braces of the last
  block in the file.

SVN r1425 (trunk)

src/thingdef/thingdef_data.cpp

@@ -206,6 +206,7 @@ static FFlagDef ActorFlags[]=
 	DEFINE_FLAG(MF5, SUMMONEDMONSTER, AActor, flags5),
 	DEFINE_FLAG(MF5, NOVERTICALMELEERANGE, AActor, flags5),
 	DEFINE_FLAG(MF5, BRIGHT, AActor, flags5),
+	DEFINE_FLAG(MF5, CANTSEEK, AActor, flags5),
 
 	// Effect flags
 	DEFINE_FLAG(FX, VISIBILITYPULSE, AActor, effects),