Fixed Critical hits being permanently disabled (bug 2674, r=dvander)

extensions/tf2/sdk/smsdk_config.h

@@ -72,5 +72,6 @@
 //#define SMEXT_ENABLE_THREADER
 //#define SMEXT_ENABLE_LIBSYS
 //#define SMEXT_ENABLE_USERMSGS
+#define SMEXT_ENABLE_PLUGINSYS
 
 #endif // _INCLUDE_SOURCEMOD_EXTENSION_CONFIG_H_

extensions/tf2/sdk/smsdk_ext.h

@@ -76,6 +76,9 @@
 #if defined SMEXT_ENABLE_USERMSGS
 #include <IUserMessages.h>
 #endif
+#if defined SMEXT_ENABLE_PLUGINSYS
+#include <IPluginSys.h>
+#endif
 
 #if defined SMEXT_CONF_METAMOD
 #include <ISmmPlugin.h>
@@ -266,6 +269,9 @@ extern ILibrarySys *libsys;
 #if defined SMEXT_ENABLE_USERMSGS
 extern IUserMessages *usermsgs;
 #endif
+#if defined SMEXT_ENABLE_PLUGINSYS
+extern IPluginManager *plsys;
+#endif
 
 #if defined SMEXT_CONF_METAMOD
 PLUGIN_GLOBALVARS();