Launcher hotfix: 2019.11.3

[Deuterium Oxide]

Hello! In addition to the recent 2019.11.2 update, we have managed to squeeze a copuple of bugfixes into an additional release - 2019.11.3. Here are the changes that come in on top of 11.2:

• The mod_registry.json cache is now much less aggressive. Users should no longer need to delete it for the launcher to pick up on changes such as the name or supported game version. Note that you may still need to restart the launcher for changes to take effect since the launcher does not actively watch files for changes.
• Better log file sanitisation for improved security

Granted, it won't affect most users experience with the launcher, but hopefully the caching fix will ease some of the pain felt by our modders.