zendown 0.1.0

• Files download are handled with curl functions, enabling parallel download.
• Add arguments for user specified cache directory.
• New function to report cache stats: cache_report()

zendown 0.0.2

• Functions fails gracefully when Internet is not available and the file is not available at cache.
• Persistent cache folder location following CRAN policies.

zendown 0.0.1

• First version with basic functions.