Merge branch 'master' of goat:git/laserbrain_demo

diff --combined src/opengl.c
index 80f712d,206f21c..f5d6ebf
--- 1/src/opengl.c
--- 2/src/opengl.c
+++ b/src/opengl.c
@@@ -17,12 -17,11 +17,12 @@@ int init_opengl(void
        glewInit();
  
        glcaps.debug = GLEW_ARB_debug_output;
 +      glcaps.draw_range = GLEW_EXT_draw_range_elements;
  
  #ifndef NDEBUG
        if(glcaps.debug) {
                info_log("Installing OpenGL debug callback\n");
-               glDebugMessageCallback(gldebug_logger, 0);
+               glDebugMessageCallbackARB(gldebug_logger, 0);
        }
  #endif