Improved combat nodes.

Headcrab cannister now doesn't launch when ai is disabled
Also will never launch all at once, added a hardcoded delay that stops them from just yoloing in all at once.

"Fixed" Thing Respawner ( and derivitave's ) MinSpawnInterval being "broken"

NPC Goals by default are now more like "hints"
You can enable the old behaviour with the variable "WorthDyingFor"

Shields no longer eat bullets!
+Added an "AlwaysOn" variable to the shields ( have to power the shield to edit it's variables in the first place )

Perimiter Walls have more options
+ They now prompt their neighbors to drag along the ground.

Update Thumb.

Tons of fixes!

+Added Screen Tinter
+Added Combine Perimeter Walls.

Fix stubborn error.

Polish shieldwall's "AllowCombinePlys" NetworkVar

Fix headcrab cannister making launch sound when static

Make Thing Respawner properly take advantage of sent's "SpawnFunction"s

More polish.

More combat nodes polish!

More combat node fixes.

Combat node fix.

Fix?