Merge pull request OpenRA#12891 from pchote/register-mods-first-time

Add the current mod to the external mods database on launch.

Fix makefile install rule.

Fix player joins resetting the server timestep.

move AA towards traditional

Allow spys to infiltrate fake structures in RA.

Merge pull request OpenRA#11956 from obrakmann/fix11953_fix-aircraft-…

…reservation-madness

Fix aircraft reservation madness

Fix a spurious NRE in GlobalChat

Fix GPS satellite palette.

Fix opening the ScriptWrappers.lua file as read-write

Merge pull request OpenRA#10244 from abcdefg30/prep-fort-lonestar

Fix and rebalance Fort Lonestar - prep-1512 version