0.2.4: some issues fixes

see commit messages

0.2.3: some fixes, see commit messages

some fixes, see commit messages

0.2.2: Fixed support for GitHub Updater Plugin with release assets

Changed structure of release asset zip. Unzips to a containing folder with the appropriate plugin slug and all plugin files. See https://github.com/afragen/github-updater/issues/716

v0.2.1: Added support for GitHub Updater Plugin

Using release assets. See https://github.com/afragen/github-updater/issues/716