Intrepid 0.2 Alpha

Intrepid is a powerful 2D game library developed to take some of the low-level programming related to the development of 2D games.
The Intrepid game library combines versatility of SDL and the efficiency of the OpenGL rendering capabilities, the power of object-oriented programming with C++.
In order to be able to create any kind of 2D game, every module that makes up the library is designed so they work with each other and not interfering in any way among themselves. This is done by keeping a standard I/O among all modules.

Enhancements:
- you are able to set the sensibility and qfactor of the pixel maps
- you are able to set an id to the walls, making them easier to be identified
- pack files
- new ways for loading images
- some data structures implemented as c++ templates... simple linked, double linked and simple circular linked lists for a while
- link video handlers, sharing the video memory when the same pictures are used
- menu itens: checkbox, radiobuttons, textbox
- lg_surface::create_text now has a parameter specifying the color of the text... we forgot to put this in the first release
- process physics calls a virtual function of lg_physics_obj when it collides with another obj. Its name is collision_obj, and it sends what obj have collided with
- physics, in the lg_phy_wall::check_coll, sends the wall too, when warning a object if a collision happened
- new way to set the scene background image, using lg_scene::set_back
- some C code that was being compiled with g++ is now being compiled with gcc
- lg_sprite and lg_surface uses less memory for storing the pixel maps
- lg_surface doesnt rotate the objects
- error rendering scene background when the scene size was smaller than canvas
- in some aleatory ocasions the screen started flickering
- sometimes the objects appeared rotated on the screen
- some opengl issues