PTR Changelog 2018-12-10: optimizations

[artch]

This post describes changes on the Public Test Realm.

• Moved Source Keeper behavior logic from runtime to processors which should improve overall game world performance. We're working on the same refactor of Invaders as well. (engine#75d6c64, driver#745aa06).

• Introduced new method Game.cpu.halt() (engine#104, driver#30 by laverdet).

• Increased maxRooms limit in PathFinder from 16 to 64 (driver#31 by laverdet).

• Added support of debugging user scripts in real-time using v8 inspector in private servers (driver#26 by laverdet).