Itch-dl

- Fixed a download failure in case where the Itch API returns the expected decompressed file size, but serves compressed archives from its download endpoint (fixes 21)
- Note: 0.4.2 was skipped as I accidentally left in a verbose debug print while implementing that fix, but noticed it after pushing the release to PyPI. Oops, one more version it is.

- Fixed a crash while attempting to download access restricted title pages. They are currently not supported, but this allows downloading libraries or bundles with restricted items without crashing.

- Fixed crashes with `--mirror-web` being unable to parse the new timestamp format - thanks mlewisa for the bugfix!
- Added support for downloading My Purchases and Collections - thanks to triple-j for this change!
- Misc dependency and docs updates.

Apologies for updates being this slow, looks like I'm not handling this project very well...

- Enforce UTF-8 usage end-to-end to prevent garbled site mirrors (partially fixes 8)

- Add support for infobox "Code license" entries (closes 6)
- Open game jam JSON files in binary mode (thanks to jackwilsdon)

Forgot to git add a new source file to 0.3.0, this one's a bit more functional.