Merge pull request #5 from AesteroidBlues/develop

Merging up cover, sfx, and some changes to weapons
Merge pull request #6 from ozzmotic/develop

Player health system and associated GUI elements (health bar and readout)
Merge pull request #7 from AesteroidBlues/develop

Updating sparks so they actually work now
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
menu music fades into battle music when loading a game; text entry field for IP address appears when Join Game is clicked
You can now choose a screenname in the options screen. playerID is saved as a static variable in PlayerOptions.
Added a +armor map pickup
minor change to position of title on host screen
Added weapon switching
Added working weapon pickups
in-game menu popup when escape is pressed
fixed mouse cursor not unlocking when game is built
fixed a bug where the camera would stay zoomed when switching from the sniper rifle
mods to cover using a spring joint -- thoughts?
fixed cover distance limit not working
added a rigidbody of large mass to asteroids, but seems to have no effect on spring?