renamed sdl module to video

git-svn-id: svn://anubis/anaglym/trunk@16 99a6e188-d820-4881-8870-2d33a10e2619

anaglym.cc

@@ -1,6 +1,6 @@
 
 #include "ag.h"
-#include "sdl.h"
+#include "video.h"
 #include <lua.hpp>
 #include <stdlib.h>                 /* exit() */
 #include <iostream>

video.cc

@@ -1,5 +1,5 @@
 
-#include "sdl.h"
+#include "video.h"
 #include <SDL/SDL.h>
 #include <iostream>
 using namespace std;