convert to Unix line endings
don't display headers when player panel is invisible
StyleCop
More style fixes.

Also fixes bogus recursive storage of OnGameStart
when a player is disconnected from the server.
Split lobby map preview into its own logic class.
Simplify the replay browser code.
Use MapPreview for server creation.
Integrate MapPreview into the map chooser.
Add data support to Download.
Simplify ServerBrowserLogic.
Fix Map.GetSpawnPoints to return CPos.
Bind MapPreviewWidget to MapPreview directly.
Move C&C chrome definitions to more closely match the other mods.
Remove map download support.
Kick clients who don't have the map when the host force-starts.
Add a force start warning dialog.
Implement async map downloads