debian: update the readme

In short, if you use Mesa, install the latest version :)

debian-packager/README.Debian

@@ -26,13 +26,11 @@ Information about the plug-ins for video
      + Compile the program using dpkg-buildpackage.
      This plug-in currently provides the greatest compatibility with video cards
      and drivers. It currently works with open source drivers like radeon R600.
-   - The OpenGL Shading Language (GLSL) version which currently only works with
+   - The OpenGL Shading Language (GLSL 4.2) version which currently only works with
      AMD video cards but support for other cards is being worked on.
 
- * The GSdx plug-in currently only supports the OpenGL software renderer.
-
  * The GSdx and zzogl GLSL plug-ins currently require a video card that supports
-   at least OpenGL 3.0. A noninclusive list of cards that support OpenGL 3.0 is:
+   at least OpenGL 3.3. A noninclusive list of cards that support OpenGL 3.0 is:
    - Radeon HD series (except HD2300)
    - GeForce 8, 9, 100-series, 200-series, 300-series, 400-series and 500-series
    - Intel Sandy Bridge HD Graphics 2000 and up
@@ -41,35 +39,27 @@ Information about the plug-ins for video
    OpenGL 3.0 and above. The GSdx and/or zzogl GLSL plug-ins use the following
    extensions/commands that may or may not be completely implemented in the
    open source video stack:
-   - OpenGL 3.0 (supported on Mesa 9.2)
-     + glClearBuffer
-     + glGetStringi
-     + glVertexAttribI
-     + GLX_ARB_create_context
-     + GL_ARB_vertex_array_object
-     + GL_ARB_framebuffer_object
-   - OpenGL 3.1 (supported on Mesa 9.2)
-     + GL_ARB_texture_rectangle (zzogl)
-     + GL_ARB_uniform_buffer_object
-   - OpenGL 3.2
-     + GL_ARB_geometry_shader4
-     + GL_ARB_draw_elements_base_vertex (GSdx)
-     + GLX_ARB_create_context_profile
-     + GLSL 150
-   - OpenGL 3.3 (supported on Mesa 9.2)
-     + GL_ARB_blend_func_extended (GSdx)
-     + GL_ARB_explicit_attrib_location
-     + GL_ARB_sampler_objects (GSdx)
+   - OpenGL 3.x (supported on Mesa 10.x)
    - OpenGL 4.0
      + GL_ARB_GPU_shader5 (GSdx, improve FXAA, optional)
    - OpenGL 4.1
      + GL_ARB_separate_shader_objects
    - OpenGL 4.2
      + GL_ARB_map_buffer_alignment
+     + GL_ARB_shader_image_load_store
      + GL_ARB_shading_language_420pack
      + GL_ARB_texture_storage
    - OpenGL 4.3
+     + GL_ARB_explicit_uniform_location
+     + GL_ARB_framebuffer_no_attachments
      + GL_ARB_copy_image (GSdx, optional)
+   - OpenGL 4.4
+     + GL_ARB_buffer_storage
+   - OpenGL 4.5
+     + GL_ARB_clip_control
+     + GL_ARB_direct_state_access
+     + GL_ARB_texture_barrier
+
    The current status for the open source drivers can be found at:
    - http://cgit.freedesktop.org/mesa/mesa/tree/docs/GL3.txt