Merge pull request #4330 from MicroGraphics/patch-1

Update AUTHORS
Merge pull request #4326 from pchote/renderer-fix

Throw a sensible exception when no renderers are available.
Merge pull request #4328 from pchote/crate-palette-fix

Polish crate rendering
Merge pull request #4327 from pchote/map-upgrade-fix

Persist custom map package contents on save. Fixes #4318.
Allow mods to define a list of compatible map sources. Fixes #4319.
Merge pull request #4331 from pchote/requires-fix

Allow mods to define a list of compatible map sources.
Add CPos.New etc functions to Lua standard library and helpers to LuaScriptInterface.cs. Rename Team.Create to Team.New.
Add Lua cargo insertion code and Utils.Skip. Needed for Allies 03 Classic.
Update KopiLua.dll with some more dangerous bits removed, and remove strong naming from KopiLua/NLua
Moved mods/ra/lua to mods/common/lua
Rename SupportPowers.Parabomb to SupportPowers.Airstrike
Update packaging scripts for mods/common
initialize Options in Editor for a new map; fix when trying to add custom assets for map which does not exist yet; ( fixes #4333 )
add xaionaro to AUTHORS at last
Add Map.GetNamedActor for map actor lookup
Generalize reinforcement insertion / extraction.
Move the TraitInfo stuff into rules.lua
Merge pull request #4337 from ihptru/editor-fix

Editor fix of #4333;
updated the Bountysource link
use the new OpenRA download redirect URL