Improved Error Handling
- Downgraded downloading ERRORS to MESSAGES to be in line with CRAN policy
- The package now correctly identifies internet connection problems vs. other kind of download problems:
- Added "no internet connection error" handling (via 'curl::has_internet')
- Added user side request errors handling (via 'httr')
- Added server side return errors handling (via 'httr')
- Server error messages are now returned to the user with a message