incomplete g++ 3.4 compile fix

stepmania/src/ActorCommands.cpp

@@ -8,6 +8,7 @@
 #include "LuaBinding.h"
 
 #include "SubscriptionManager.h"
+template<>
 set<ActorCommands*>* SubscriptionManager<ActorCommands>::s_pSubscribers = NULL;
 
 

stepmania/src/PrefsManager.cpp

@@ -25,6 +25,7 @@ const CString DEFAULT_LIGHTS_DRIVER = "Null";
 // For self-registering prefs
 //
 #include "SubscriptionManager.h"
+template<>
 set<IPreference*>* SubscriptionManager<IPreference>::s_pSubscribers = NULL;
 
 void PrefsManager::Subscribe( IPreference *p )

stepmania/src/ThemeManager.cpp

@@ -54,6 +54,7 @@ deque<Theme> g_vThemes;
 // For self-registering metrics
 //
 #include "SubscriptionManager.h"
+template<>
 set<IThemeMetric*>* SubscriptionManager<IThemeMetric>::s_pSubscribers = NULL;
 
 void ThemeManager::Subscribe( IThemeMetric *p )