* src/pgm/pgm-vertex-buffer.c:
        Added support for premultiplying guint8 vertex colors.

        * src/pgm/pgm-utils.h:
        Fixed preprocessor defines checks (still problematic though).

        * src/pgm/pgm-plugin.c:
        * src/pgm/pgm-plugin.h:
        * src/pgm/pgm-renderer.c:
        * src/pgm/pgm-renderer.h:
        * src/renderers/opengl/backend-glx.c:
        * src/renderers/opengl/backend-wgl.c:
        * src/renderers/opengl/backend.h:
        * src/renderers/opengl/plugin-opengl.c:
        * src/renderers/opengl/plugin-opengl.h:
        * src/renderers/opengles/backend-gdl.c:
        * src/renderers/opengles/backend-native.c:
        * src/renderers/opengles/backend-x11.c:
        * src/renderers/opengles/backend.h:
        * src/renderers/opengles/plugin-opengles1.c:
        Added support the move a renderer window.
        Fixed wrong X11 default cursor.
        Added new size-all cursor.

        * configure.ac:
        Updated to use "#" comments.