added music and working ammo pickup for rifle
added host screen with map select
menu music persists across all menu screens without stopping or duplicating
fixed some colors, added a (blank) options screen
ammo pickup respawn
Merge pull request #8 from ozzmotic/develop

menu music, host screen, map select, ammo pickup
Merge branch 'develop' of https://github.com/ucsdvgdc/project-eva into develop