Panic when failing to create Renderer in the opengl plugin.

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@607 8ced0084-cf51-0410-be5f-012b33b47a6e

Source/Plugins/Plugin_VideoOGL/Src/main.cpp

@@ -193,7 +193,8 @@ void Video_Prepare(void)
     OpenGL_MakeCurrent();
     if (!Renderer::Create2()) {
         g_VideoInitialize.pLog("Renderer::Create2 failed\n", TRUE);
-        return;
+        PanicAlert("Can't create opengl renderer. You might be missing some required opengl extensions, check the logs for more info");
+        exit(1);
     }
 
     TextureMngr::Init();