Update V2.2

This is a larger update compared to the V2.1 update, however I don't think it's big enough to warrant the labelling of a new version just yet. The "jump" from 1.1 to 2.0 was because the rebalancing was very significant and I changed the enemies to a significant degree as well. In this case, it's primarily just much more mild rebalancing. So far I've managed to do my stuff almost entirely in the unity editor and didn't really have to work with actual code (with one small exception), but I'm afraid I won't get around that for much longer if I want to add any of the planned features. :P

did some stuff with hoverbots:

• increased hoverbot HP from 1 to 3
• increased hoverbot scale from 1.2 to 1.3 for larger hitbox
• repositioned hoverbots in jetpack room
• hoverbots don't drop health pickups anymore
• added hoverbot to "guard" the disc launcher

rebalanced the disc launcher:

• reduced disc launcher reload delay to 1.2 (equal to all other weapons, now also including the sniper rifle)
• reduced reload rate to 2 (lol)
• reduced minimum damage (no charge) from 10 down to 5 - insufficient to instakill a small turret
• increased maximum damage (full charge) from 10 up to 20 - sufficient to instakill a large turret

the process of respawnning now takes up significantly less time

• increased kill height from -20 to -8
• removed fade to black after meeting the win / loose conditions
• reduced "delay before fade to black" from 4 to 0 (yes, this is relevant even with the fade being removed)

miscellaneous changes:

• additional health pickup placed near sniper rifle