- Added modifier to "perishable" items (food and other things).
- Added item tweaks for:
+ Spider hat
+ One man band
+ Umbrella
+ Earmuff
+ Winer hat
+ Beefalo hat
+ Trunk vest
+ Sweater vest
+ Hunger belt
+ Walrus hat
+ Feather hat
+ Tophat

Added Wickerbottom book usage tweaks.

There's a single setting for all of the books so that any future books are automatically supported. Let me know if individual book settings would be helpful.

Updated preview icon.

Changelist:
- Added sleep related settings:
+ Sleep tick period.
+ Sanity per sleep tick.
+ Health per sleep tick.
+ Hunger per sleep tick.
+ Temperature per sleep tick.

Currently provides settings to change:
-32 items (1 tested).


Changelist:
- First release.
- As a start, pulled out a bunch of settings that had the word "uses" in it. Ex: PITCHFORK_USES.
- Did this mainly to tweak the Thermal Stone, so its the only one tested (i.e. personally used) at the moment.
- Why does a stone lose heat retention so fast?!


Up next:
- Playing with and bug fixing untested settings.
- Adding game timer settings.
- SUGGESTIONS?