Spring 0.80.5.2 bugfix release

[zerver]

Sorry, forgot to make the MT version because 80.5.1 was working so well :) but I built it now and put it on the DL page.

Please note there still is a hang bug related to unit groups (fixed in next bump) so please avoid assigning groups with MT.

[Wolf-In-Exile]

Reflections are borked for me, they don't show in areas getting directly lit, but show up in shadow areas.

[Wartender]

why in the hell isn't this in the ubuntu repos? it's been out for months!!