Added option to spawn zombies at shelter
Remove logical redundancies in some cooking recipes.
Recipe resanification.
Filling in the gaps.
Balancing lumber values.
Formatting and further small fixes.
Reclassifying salt water.
Reclassifying fertilizer.
A little diversification.
Further diversification.
Remove OBSTACLE flag from plating.
vehicles.json overhaul

Courtesy of Mechanoid on the forums, here is an overhaul of
vehicles.json, fixing in a massive amount of (literal) holes in Cata's
fleet of vehicles.  Also, I replaced the last of the underbody wide
wheels with the correct normal wheels, as they were no longer needed.

Original forum thread:
http://smf.cataclysmdda.com/index.php?topic=3739.0
quarterpanel proof of concept and example design (car)

As suggested in the comments, added quarterpanels.  A quarterpanel is an
obstacle, but does not block vision.  It has 250 durability, or
one-quarter of a board.  Also, as an experiment, turned all boards on
the "car" into quarterpanels, added quarterpanels over wheels, and moved
headlights to the top two corners of the vehicle, eg. where the wheels
are.  I think this makes a more realistic looking car, putting it up so
people can comment.
Improve quarterpanel durability an new beetle design

doublechecked whether quarterpanel fits in the menus and it does.
Raised quarterpanel's durability to 500, 250 felt too low.  Also tweaked
design of beetle, take a look and comment your opinion.
car chassis design update

updates car chassis to new design
cube van redesign
hippie van redesign
flatbed truck
More quarterpanel shapes and big windshields

When I started on the semi-truck, I realized just putting horizontal
quarterpanels on the front would make it look really boring.  So, I made
some more quarterpanel variants to go with the decorative frame
variants.  Also gave the previously redesigned vehicles full width
windshields, per Kevingranade's suggestion.
Fix for vehicle parts not displaying properly
* Note: Will require tileset config files to be updated to the jsonized vehicle_part id values along with a "vp_" prefix to reduce potential conflicts later.