Fixed some warnings, moved Subcommand into its own file, added support for subcommand and subcommand options autocomplete in Console, added texture ids to Model vertex buffer object

lib/wavefront/material.rb

@@ -3,7 +3,7 @@ class IMICFPS
     class Material
       include OpenGL
       attr_accessor :name, :ambient, :diffuse, :specular
-      attr_reader :texture
+      attr_reader :texture_id
       def initialize(name)
         @name    = name
         @ambient = Color.new(1, 1, 1, 1)
@@ -32,10 +32,6 @@ class IMICFPS
 
         @texture = nil
       end
-
-      def texture_id
-        @texture_id
-      end
     end
   end
 end