v2.1.0

This release contains some minor changes, including the addition of new disk-oriented commands for dumping and reloading a cache.

Fixes:

• Corrected an issue with the keys/2 typespec
• Corrected a small performance issue in transaction locks

Improvements:

• Added a new dump/3 command to dump a cache to a local file
• Added a new load/2 command to load a local file into a cache
• Updated all dependencies to latest
• Updated and conformed to latest Credo configuration

Please make sure to file any issues found and they'll be addressed as soon as possible!