- Refactoring: moved a lot of duplicate custom level logic to base class
- Refactoring: moved a lot of duplicate enemy logic to base class
- Fixed a somewhat interesting Special Level
- Fixed delay before melee enemy does its' first attack
- Fixed bug where music played twice
- Reduced time spent charging
- increased maximum energy
- Moved level5 logic to level6 since 5 should be a boss level

Signed-off-by: Daniel Dahlkvist (dice) <daniel.dahlkvist@dice.se>