Major release - v1.10 (Shared control, mechs, maps, better AI)

Shared ally control can be setup for multiplayer games
Disconnected players automatically get all their units shared to allies till they return
Mech Factory added, with a set of initial mechs
- Basic mech - Land only
- Anti-air mech - Area effect anti-air only
- Plasma Mech - Long range air & ground attack
- Flame Mech - Short range flamethrower with high HP
T3 gun turret upgrade
New map: Enclosed Island (10p)
Spider mech now costs $70000 and uses up 5 transport slots. And it's death nuke is disabled when 'no nukes' game setting is on.
New building gird placement system and reworked footprint of many buildings
Modded units are now loaded from 'mods/units/' and can be enabled or disabled in-game
Lots of new modding features
- Modded units can now have upgrade actions
- Can dynamically switch any property with convert actions
- Custom projectile graphics with more options
- Modded units can override builtin units
- Lots more
Fixed pathing issues causing builders with queued buildings to pause
Fixed pathing issue causing units from factories to sometimes pause before moving to rally
Builders now wait up to ~15 seconds if there is not enough money to place a building before giving up
Fixed pathing issues with units loading into transports in multiplayer
Softer speedups on laggy networks and better handling of high ping
Builder ships can build more building types
All builders can reclaim buildings
Repairbay automatically repairs allies units and helps build buildings
More robust server networking code
Spider mech automatically repairs units
When a unit can both repair damaged transport or load into it will toggle between load up and repair
'lava votex' map balance fix
T1 builder can no longer build nuke launchers
Lots of AI improvements and fixes
- AI can better use modded units
- AI builds anti-nuke, repairbays, and laser defenses
- AI cannot hijack the sandbox editor to build units (haha)
- Builds attacking units more reliability
- Expands better