TShock 4.2.7 & API 1.17 for Terraria 1.2.4.1

This update provides a significant overhaul of the logging system, new region hooks, silent commands, NPC transformation hooks, and general improvements and bugfixes.

Release thread: https://tshock.co/xf/index.php?threads/tshock-4-2-7-api-1-17-for-terraria-1-2-4-1.3587/