decreases max obstacle spawn time
increases monkey speed
removed increase monkey speed, added obstacle collision slowdown
merge from master
updated some physics variables..
updated Monkey prefab
updated LevelFromFile spin speed
updated default variables
updated Classic Mode Monkey variables
changed MonkeyMouse threshold
Merge pull request #42 from jcvno/jcano/classic-mode-difficulty

jcano/classic mode difficulty
updated default physics variables
fixed merge conflicts
fixed merge conflicts
Merge pull request #43 from jcvno/connienguyen/back-button-and-coconut-graphic

connienguyen/back button and coconut graphic
Scene changes for skyboxmanager to work