Updated some scenes to have Android back button functionality
Merge branch 'master' of https://github.com/jcvno/ToTheTop
Added start images for future use
Merge branch 'master' of https://github.com/jcvno/ToTheTop
Grid level selector framework set up
Merge branch 'master' of https://github.com/jcvno/ToTheTop
Difficulty selection change
Removed unnecessary skybox graphics
updated sound and camera scripts
Updated hearts to scale according to screen size
fixing merge conflicts
fixing merge conflicts
Pull from master
Fixed sounds
Merge pull request #27 from connienguyen/master

[connienguyen merge] added level selection menu
loads level 1 from file