tagged ground as ground and changed to better camera
updated the player_prefab_with_ball, and added it to ball_test
merged power-bar by @MaritalWheat
added Marker Prefab from @MaritalWheat and combined powerbar to the prefab
moved PowerMeter from assets/ to Assets/
Merge pull request #101 from Vaakapallo/power-bar

Fixed ball simulation in level_full and added @MaritalWheat's power bar.