fix broken FreeType 2 RPM dependency

* http://pkgs.org/download/freetype on Fedora
* http://pkgs.org/download/freetype2 on everything else
reveal shroud for aircraft husks falling down
Merge pull request #4305 from Mailaender/rpm-freetype

Fixed broken FreeType 2 RPM dependency on Fedora
update CHANGELOG
Merge pull request #4306 from Mailaender/ra-aircraft-husk-sight

Reveal shroud for RA aircraft husks
Change crate graphics for christmas. Closes #4296.
Merge pull request #4313 from pchote/gifts

Change crate graphics for christmas.
Add a lua actor facing helper.
Fix initial HTNK turret facing in C&C shellmap.
Merge pull request #4315 from pchote/cnc-shellmap-fix

C&C shellmap polish fix.
Add CPos.New etc functions to Lua, some more helpers to LuaScriptInterface.cs. Rename Team.Create to Team.New.
Add Lua ship insertion code. Needed for Allies 03 Classic.
aod test