Created a lifetime for the bullet.

It will be removed after 1 second. This is for optimization.
Fixed image-problem
Refactored Joystick

Removed hard-coded variables
Created Item interface
Modified Joystick

Added support for different kinds of Joysticks
Added Joystick-images
Updated joystick images
Created SelectWeapon-method
Created Item class to represent an Item
Updated images
Merge branch 'weaponselection' of https://github.com/bellevik/glory into weaponselection

Conflicts:
	zombie-world-desktop/bin/img/fireBase.png
	zombie-world-desktop/bin/img/fireKnob.png
Updated images
Modified selectWeapon-method
Updated selection-method
Changed the type of the weapon to player so its easier to detect collision.

THis way the weapon of the player is part od the player body
Implemented collision between a Player and an Item
Moved Player to WorldHandler for static acces throughout the project
Method to pick up items in the world
Added comments to the code
Added quickselection-containers

Added quickselection-containers and displayed them on the stage