new scene - scene1(large GUI buttons)
Returned sound effect for zombie on human
Added zombie on guard sound
removed walls around graveyard, little GUI cosmetic updates
Removed sound

The sound in attackAi conflicted with TrollAi, so I disabled the sound
again
Merge branch 'master' of github.com:gdg-nova/game1 into Working_branch_AP
New Pause Menu functionality that is resolution independent. At the moment we lose the animation because Unity's mecanim system cannot handle dynamically created animation curves.