The transformNumbers function was turning m^3 into m^3.00

This lets the volume meters not jitter around, but also lets things that should be fixed precision

Every separate fill function was calling update(), which was redundant

This marks the first time anything more than parsing is done to a setting when
loaded or saved. Hopefully floating point errors will not wind up causing problems!

Old saves will have their base production values cleared.

Unit Symbols

*added symbolic units for metric and customary. (EX m instead of metet)
*removed some "-" from body part descriptions that didn't make sense
*toggle units button now displays the correct units on start

This reverts commit 29f0302020.

*added symbolic units for metric and customary. (EX m instead of metet)
*removed some "-" from body part descriptions that didn't make sense
*toggle units button now displays the correct units on start

update to master

Nested subcategories are now centered.
Toggleable settings have proper widthsn ow

This replaces the old behavior of setting digestion time to 0.
Doing so does still work, but it is no longer mentioned.
This introduces a save migration, since the option needs to be
set based on the digestion times.

This was because the game threw out all false settings when exporting -
in the past, every checkbox defaulted to false. This was done because
many checkboxes lack default settings of false, meaning their
defualt value was undefined, not false. The code now checks for this
case - false setting, undefined default - before moving on to the more
general check for equivalence.

screen

Full Biome Implementation