Plastic bowl can now hold liquid.

Make plastic bowl holds liquid as its description dictates.
Merge branch 'master' of https://github.com/CleverRaven/Cataclysm-DDA into CDDA-clean
Merge branch 'master' of https://github.com/CleverRaven/Cataclysm-DDA into CDDA-clean
Merge branch 'master' of https://github.com/CleverRaven/Cataclysm-DDA into CDDA-clean
Merge branch 'master' of https://github.com/CleverRaven/Cataclysm-DDA into CDDA-clean
delete all created windows
Merge branch 'master' of https://github.com/CleverRaven/Cataclysm-DDA into CDDA-clean
A newly created vehicle with random defects now has a chance
to have blood splattered around one of its seats.
Restyle a big chunk of plmove so I can read it.
Handle turret ammo properly when spawning and despawning, this fully addresses 3982 I think.
No injecting past non-purifiability

No loophole for you!
Vehicles sometimes start with their engines left on.
savegame, load item: stash invalid itype id string in item_vars. automatically
restore for "null" items if stashed itype becomes valid again. This makes mystery
nulls easier to diagnose, makes the game more sturdy when mods are enabled/disabled
artifact: stop giving artifacts int-as-string itype->id, which results
in garbled invcache entries and artifacts reloading as 'none'. Also make
id string creation automatic in artifact itype constructors
item legacy save load: apply bad itype preservation and anti-itype-autovivication fix
item::tname: only *indicate* if item_vars["item_note"] exists, instead
of *any* item_var
Added Urine

Added urine to hospital spawns and made it a component in making
batteries and plant food.
Make washers, dryers, and exercise machines deconstructable

as per Issue #4357. Furthering the possibilities of deconstruction.
Under Construction

FWIW the category-mutagens don't seem to be accepting the dual-prereqs
as easily as the standard ones.  Looking into the matter.
Merge branch 'master' of https://github.com/CleverRaven/Cataclysm-DDA into CDDA-clean