* Make Null class use Null.s3o
* Fix typo in ita units re: pontoonraft
* OO binocSpot, flag & Buoy (lol) as GameMechanics.lua
* New baseclass for InfantryLandingCraft, including Daihatsu
* Rename all inf landing craft platoons to make it easier to OO -> <side>_platoon_landing
* Cleanup of some ship unitdef tags now dealt with via base class or _post
* OO the  Last 2 ships - Siebel Fahre and LCSS
* Cheat a bit - DUKW and LVT are not ships so move them to vehicles
* DUKW OO
* Fix a couple of typos re: CEGs in unitdef sfx tables
* Custom DUKW Supplies model (still has the canvas but better than the wrong truck altogether)
* Fix Scania buildpic
* Custom paintjob for Italian version of Freya radar
* Really OO the last ships (cleanup of LCTs with some tags moved to new base class, + Toku converted)
* OO British Infantry
-- RFC, especially you hoko!
* Custom BPs for US airborne troops (ala Italian Bersaglieri & Alpini)
* OO Tank Shelter under GameMechanics
-- Game Master can go there too, once there is Aircraft class
* Move all weapon models to /weapons subfolder by abusing weapondefs_post
* Consolidate ITA buildpic .psd
* Remove unused background images
* SWEPSkottM45 model (copied from GERPanzerFaust)
Merge branch 'sweden' of https://github.com/spring1944/spring1944 into sweden