Pre-Release 14

• Use templates on many items, to make textures dynamically change to fit:
  • Bases of 50s vents
  • BEEmod door frame
  • Clean floor buttons
  • Clean vents
• Implement dynamic elements in 70s coop spawn room
• Fix Old Aperture Paint Fizzlers not displaying effects
• Remake 80s entry 3
• Add 50s Crusher styled variant
• Fix P1 goo texture
• Add P1 style autoportals
• Use grating instead of glass in P1 piston platforms, when they can submerge in goo.
• Use worldportals or custom models to make P1 light strips embed into the wall
• Fix various issues with gel droppers
• Add WrathOfMobius's conductive plate items (surfaces that detect when cubes are present, and can be enabled/disabled via an input).