Sync Settings v2.4.0

This version has some bug fixes found and new features

- Rename cache file from `.sync_settings_cache` to `.sync-settings.cache` (~/.sync_settings_cache)
- New Command `Sync Settings: Edit User Settings` by @JohaWeber
- Bug Logging was improved

Issues:
- Remove SyncSettings references from download process (https://github.com/mfuentesg/SyncSettings/issues/50)
- Download doesn't work and clears Gist ID (https://github.com/mfuentesg/SyncSettings/issues/46)
- downloading append a newline in configfile (https://github.com/mfuentesg/SyncSettings/issues/45)
- sync_settings_cache links to wrong directory (https://github.com/mfuentesg/SyncSettings/issues/42)
