0.1.0-alpha4

Still considered unstable, but getting closer to a hopefully stable release so bumping the major version just for that.
Up to alpha4 now because I hate GitHub actions.
There are still some issues with concurrency left, but please open any issues if you spot anything else that's broken/not working properly.

Library

• Added LogLevel setting, defaults to Info loglevel. Set to Warn for only warnings/errors and Off for no logging/output.
• Improved config matching for non-default regions, this improves support for e.g. wow_classic_titan when loading in non-CN regions.
• Switched to HTTPS for CDN downloads, mirrors official CDN usage.
• Initialize local dir for before config load, fixes an issue where configs would still be downloaded if present in on-disk installations.

TACTTool

• Hook up verification mode to tool (still WIP/unfinished).

Full Changelog: 0.0.15-alpha2...0.1.0-alpha2