This is a hotfix release for an engine bug that could be used to place geos anywhere.

Modding

model_tint = "1.0  0.5  0.0" -- R G B
model_glow = "0.1  0.2  0.3  1.0" -- R G B A
model_rescale = 1.23,

Free units (0 metal and energy cost) no longer need to explicitly specify a non-zero buildtime.
Support some recently added engine interfaces, see `engine_compat.lua`. Note that ZK hasn't yet migrated.

Fixes

Fix an exploit to do with geo placement.
Fix the "Enable Force Fire Command" default state for Lobster.
Fix Dominatrix breaking when capturing very low completion nanoframes of very expensive units.
Fix awards for sharing and capture to consider nanoframes at their real value.
Fix a chat crash if using the "color labels the player colour" option.
Fix Onyx Cauldron using incorrect boxes in coop comp stomps.
Fix cloaked constructors revealing themselves by reclaiming if using the automated constructors widget.
Land units now eventually give up when ordered to move deep into an inaccessible place (such as a large sea).