Started work on LevelLoader
Removed unused resourceManager in MainActivity
Moved contact-system to PlayerContact.java
Fixed contact-system
Added some comments to scenes
Added an UpgradesManager from feature branch
Added a basic upgrade class
Implemented Upgrade into UpgradeManager
Changed so speed is applied in forces according to how it is done in feature
More work on LevelLoader
LevelLoader is even more worked on!
Changed initialization of player
Fixed a bug where platforms didn't work properly
Changed the way contact is handled
Removed old code
Removed unused imports and variables
Removed additional unused imports
Moved similar code to a generalised method
Added a max speed and fixed animation
Added a new backwards animation sprite