v0.15.1

Added

• You can now use YAML to store your collections! The default format still is JSON. #30
  • If you want to use yaml by default, add preferred_collection_file_format = "yaml" to your app config file. All the new collections will have the yaml format.

Improved

• Replaced all std RwLocks by parking_lot RwLocks to gain speed and reduce data size.

Fixed

• Fixed a bug where you could not use the app if you did not have an environment #60 #62