xREL.v3

Update v21903:
Changes and Additions
The Herald of the Arda Seed now tracks reputation with the player's faction, and available purchases are now dependent on reputation level.
Players may now purchase and discover Codexes, which unlock previously unavailable technologies for research.
The Tinkers' Bomber has been replaced by the Vindicator, which is an expendable multiple-warhead manned missile which can be launched from torpedo hardpoints as well as hangars.
Arda Seed Proteans will now use an offensive suicide attack after closing on enemy ships.
Added five new achievments related to the Legacies DLC.
The mining activity now provides +50% output per mine (up from +33%).
Earthquake random events are now limited to destroying at most 2 improvements.
Added the 'minerals discovery' random event.
Added the 'artifacts discovery' random event.
Increased Market Coin production from 4/7/12 to 5/10/15.
Increased second and third tier Factory Labor production.
Adjusted Dread Star production costs.
Added a 'hostile environment' upkeep cost for colonies in harsh environments. This new mechanic is suppressed in any game started prior to r21718 so that it will not affect existing saves.
AI empires should be less likely to choose to colonize hostile environment worlds.
Marauder factions should be less hostile to AI empires.
AI empires will now make use of outposts to extend range.
Increased the planetary bombardment power of carriers.
Fixes
Fix for a rare bug that could be triggered when Harpy fleets returned to their source HSA.
Losing a planet should now reliably resolve all pending construction complete warnings pertaining to that planet.
Fix for a bug caused by unresolved attacks against fleets belonging to a defeated empire.
Fixes for bugs that could be triggered by refitting ships while in the process of issuing a move order.
Fix for a production display bug affecting planets with space habitats.