6.67C changelog

1. Fixed casting distance exploits with Skewer
2. Fixed a bug that could sometimes cause everyone in the game gets a massive FPS drop for a minute
3. Fixed Cleave/Anchor Smash from instantly killing Swarm creatures
4. Various performance improvements when casting The Swarm
5. Fixed Soul Steal channeling text in the tooltip
6. Non-hero units now do half damage to The Swarm
7. Commands like -test and -wtf are now restricted if there is a gamebot deciding the mode to be used
8. Fixed a bug with lifesteal and The Swarm creatures
9. Fixed a rare Mac issue with shared Soul Ring
10. Added passive icon for Strygwyr's Thirst
11. Added passive icon for Plague