Fixed a crash during world generation.

Webber now can use silk to wrap items into packages.

Added some missing code from the previous patch.

– Added configuration options.
– Spiders no longer attack walls while following Webber.
– Removed Spiderhat being damaged in combat.

– Fixed an issue when Spider Dens can't be used sometimes.
– Reduced health gained per sleep tick by 50%.
– Removed reduced hunger drain related to den tier.

Initial release.