lib: adds reference to last turn in bucketed_game

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>
lib/mnit: cleanup code

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>
lib/opengles1: fix duplicated drawing of triangles

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>
lib/sdl: use (or not) SDL mouse motion events

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>
lib/math: fix Float::abs

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>
Merge remote-tracking branch 'alexis/various-fixes-for-games'

Latest additions to the standard library for Round'n Round.

The Float::abs implemetation corrects a bug present in master.