Added a batchscript for utility.exe
fix Lua 5.1 library detection failed on Gentoo and derivatives

closes #6529
Remove GDI03.
Remove legacy Lua API traits.
Remove legacy Lua API.
Remove old IRC code.
Merge pull request #6782 from Mailaender/configure-gentoo

Fixed Lua 5.1 library detection failed on Gentoo and derivatives
Define BaseLine offset for ButtonWidget.
Allow custom ScrollPanel button styles.
Split out TS’s dropdowns.yaml.
Overhaul the replay sidebar.
Add a new stats button glyph.
Add the statistics button to TD replays.
Fix the handling of maps with invalid rules.  Fixes #6787.
Merge pull request #6737 from pchote/replay-sidebar

Overhaul the observer sidebar.
Update OSX app icon.
Move shared font files to the common mod directory.
Add a reference to Eluant in AUTHORS.
Merge pull request #6764 from abcdefg30/utilitybatch

Added a batchscript for OpenRA.Utility.exe
Merge pull request #6786 from pchote/retire-code

Retire legacy Lua API and IRC code.