Afegides utilitats per a linux

Arreglats alguns includes

source/balloon.cpp

@@ -1,10 +1,10 @@
 #include "balloon.h"
-#include <math.h>            // for abs
-#include "animated_sprite.h"  // for AnimatedSprite
-#include "moving_sprite.h"    // for MovingSprite
-#include "param.h"           // for param
-#include "sprite.h"          // for Sprite
-#include "texture.h"         // for Texture
+#include <math.h>			 // for abs
+#include "animated_sprite.h" // for AnimatedSprite
+#include "moving_sprite.h"	 // for MovingSprite
+#include "param.h"			 // for param
+#include "sprite.h"			 // for Sprite
+#include "texture.h"		 // for Texture
 
 // Constructor
 Balloon::Balloon(float x, float y, Uint8 kind, float velx, float speed, Uint16 creationtimer, Texture *texture, std::vector<std::string> *animation)