PowerUps started

We have decided to have different textures and different int-values for
each powerup. Inside the game-class the effect of the powerup will be
decided and executed. (Inside an awesome switch case inside an awesome
function).
Faster ball

Faster and slower ball works!
POWER UPS!

5 Power ups added, Faster/slower ball, Bigger/smaller Pad and sticky
ball.
Texture alpha channel is bugging needs fix!
Bugs Fixed and Camera

Texture alpha bug fixxed! Camera added and converted to glm. Power Ups
also despawn when they hit the bottom box now.
Powerups and Camera added

Merge with Powerup branch.