Fixes

Potentially fixed the rare crash related to dismissing UI dialogs (#102)
Fixed issues with handling of UI input, which caused the difficulty UI to behave oddly, among others (#100, #108)
Fixed a crash when switching the mod loader to profile-specific configuration, when modcontent.lua is not present in the save game directory.
Fixed GetCurrentMission() sometimes returning nil in MissionStart hooks.

modApi

Mods can now specify whether they should be enabled or disabled by default (they were always enabled by default). See Creating Mods for details.
Significantly improved performance of rect_contains and rect_intersects functions

Added contains and intersects methods to SDL Rects

Example:

local rect = sdl.rect(0, 0, 2, 2)
rect:contains(1,1)

Added modApi:getCurrentMod() - returns the mod that's currently being initialized or loaded. Only callable during init or load.
Added modApi:getModOptions() - returns mod options of the mod that's currently being initialized or loaded. Outside of init or load context, you need to pass your desired mod's id as argument to this function.
Added screen:mask(sdl.rect)
Added screen:unmask(n)
Added screen:clearmask()
Added BoardPawn:GetEquippedWeapons()
Added BoardPawn:GetPoweredWeapons()
Added BoardPawn:IsWeaponEquipped()
Added BoardPawn:IsWeaponPowered()
Added BoardPawn:GetArmedWeapon()
Added BoardPawn:GetQueuedWeaponId()
Added BoardPawn:GetQueuedWeapon()