Renamed lighting shader to default, shoehorned in glsl 3.30 support for Intel on Linux, removed duplicate handleGlError methods, added OpenGL and GLU to Object namespace, removed redundant includes for OpenGL and GLU, VBO and VAO now render (all be it incorrectly)

shaders/fragment/lighting.glsl

@@ -1,7 +0,0 @@
-# version 150
-
-out vec4 frag_colour;
-
-void main() {
-  frag_colour = vec4(0.5, 0.0, 0.5, 1.0);
-}