fix cnc menu/multiplayer titles overrides by server's title;
spelling fix
fix #2780 ; Send state=3 to master server when it's not dedicated and admin presses disconnect
Flamethrower range reduced to 2.5

Flamethrower seems OP, and flamethrower spam can dominate early game without much to counter it. Reduced range back to earlier levels (in C&C 95 it was 2).
update player list in lobby gracefully for better user experience
Merge pull request #2788 from psydev/patch-3

Flamethrower range reduced to 2.5
Merge pull request #2782 from ihptru/clear-master-list

fix #2780 ; Send state=3 to master server when it's not dedicated and ad...
fixed child removal
fixed relayout on draw
refactored child remove/replace into ScrollPanelWidget
fixed scrolling on child remove
added moving average to contrails to smooth them when aircraft are circling
put attack traits into the syncreport.log
refactored Average method in PPos
Merge pull request #2798 from bidifx/contrail

smooth contrails
Merge pull request #2796 from Mailaender/attack-sync

Put attack traits into the syncreport.log
Merge pull request #2789 from bidifx/lobby

update player list in lobby gracefully for better user experience
add tab cycle key to setting GUI
fixes #2791 don't crash on powerdown hotkey when playing cnc
pull cnc sell/repair button hotkeys from settings
fixes #2785 don't crash when last player leaves game in cnc
add --docs flag for utility
ship a proper SDK for modders

including the OpenRA.TilesetBuilder.exe fixes #2316
and auto-generated trait documentation fixes #2437
compile Markdown to HTML for offline use
purge external files from the doc folder (moved to Wiki)
remove unused non-free Dune 2000 font