Merge branch 'master' into gonesolong

Conflicts:
	src/CMakeLists.txt
	src/b_think.cpp
	src/g_doom/a_doomweaps.cpp
	src/g_hexen/a_clericstaff.cpp
	src/g_hexen/a_fighterplayer.cpp
	src/namedef.h
	src/p_enemy.cpp
	src/p_local.h
	src/p_mobj.cpp
	src/p_teleport.cpp
	src/sc_man_tokens.h
	src/thingdef/thingdef_codeptr.cpp
	src/thingdef/thingdef_function.cpp
	src/thingdef/thingdef_parse.cpp
	wadsrc/static/actors/actor.txt
	wadsrc/static/actors/constants.txt
	wadsrc/static/actors/shared/inventory.txt

- Added register reuse to VMFunctionBuilder for FxPick's code emitter.
- Note to self: Need to reimplement IsPointerEqual and CheckClass, which
  were added to thingdef_function.cpp over the past year, as this file no
  longer exists in this branch.

src/r_utility.cpp

@@ -729,6 +729,42 @@ void R_ClearPastViewer (AActor *actor)
 	}
 }
 
+//==========================================================================
+//
+// R_RebuildViewInterpolation
+//
+//==========================================================================
+
+void R_RebuildViewInterpolation(player_t *player)
+{
+	if (player == NULL || player->camera == NULL)
+		return;
+
+	if (!NoInterpolateView)
+		return;
+	NoInterpolateView = false;
+
+	InterpolationViewer *iview = FindPastViewer(player->camera);
+
+	iview->oviewx = iview->nviewx;
+	iview->oviewy = iview->nviewy;
+	iview->oviewz = iview->nviewz;
+	iview->oviewpitch = iview->nviewpitch;
+	iview->oviewangle = iview->nviewangle;
+}
+
+//==========================================================================
+//
+// R_GetViewInterpolationStatus
+//
+//==========================================================================
+
+bool R_GetViewInterpolationStatus()
+{
+	return NoInterpolateView;
+}
+
+
 //==========================================================================
 //
 // R_SetupFrame