Demo Update v0.0.3

Disabled auto-crouch when bumping head against ceiling, if no crouch button is set in custom controls.
Added crouch button tutorial tip.
Added sprinting tutorial tip.
Fixed bug causing some options to be reset between play sessions.
Opening the physics-door should be easier now.
Fixed typos in tutorial messages.
Inventory ammo display now turns red when out of ammo.
Tweaked rocket boost particle effect to be less vision obstructing.
Tweaked enemy awareness for playing sneaky.
Chest and locker grab box size increased.
Fixed sound bug for breaking glass.
Tweaked enemy voice line usage.