Endless Demo Update MK.II

MK.II Changes:

Endless:

• Added spawners for hazards such as explosive barrels
  
• Reduced the delay between waves.*

General:

• Added XP notifications on hud
  
• Added Weapon Unlock Notifications
• Added Crosshair settings - Note: Still needs a bit of polishing in the options menu.

Bugs:

• Fixed shotgun shell door mods costing $0
  
• Fixed player bullets hitting the player when aiming at the perfect angle and jumping, killing the player's momentum.

Gameplay Changes:

• General Rewrite of XP related code
  
  • Adjusted Big & Giant XP rewards
  • Adjusted XP requirement for ranking up (Previous version saves should not be heavily affected, just simply rank up and you'll be using the new rank up requirements.)
  • Changed how XP is rewarded so it is possible to earn XP from means other than killing enemies.
  • Added an XP reward for clearing a wave (More XP rewards will come for: headshots, mid-air kills, hazard kills, etc.)
• Rewrote armor cost calculations
• *At the end of each endless wave, the current kill combo will end before the next wave starts.
• Doubled the Kill Combo Penalty for taking damage