DoTA

- Fixed a case where Elder Titan's Spirit could get stuck in the world when using Eul's and unified unit orders
- Elder Titan’s spirit is now only selectable by the Elder Titan player
- Added new convars for video makers (dota_sf_hud_spectator_override 1 and dota_sf_hud_spectator_graph 0)
- Fixed the Gravestone to display the pro player name if available